U.S. patent application number 15/192054 was filed with the patent office on 2016-10-20 for broadcast control bandwidth allocation and data transceiving method and apparatus.
This patent application is currently assigned to HUAWEI TECHNOLOGIES CO., LTD.. The applicant listed for this patent is HUAWEI TECHNOLOGIES CO., LTD.. Invention is credited to Xiaolong Guo, Zhenyu LI, Zhiqin Yu, Song Zhu.
Application Number | 20160309367 15/192054 |
Document ID | / |
Family ID | 53477413 |
Filed Date | 2016-10-20 |
United States Patent
Application |
20160309367 |
Kind Code |
A1 |
LI; Zhenyu ; et al. |
October 20, 2016 |
BROADCAST CONTROL BANDWIDTH ALLOCATION AND DATA TRANSCEIVING METHOD
AND APPARATUS
Abstract
Embodiments of the present invention provide a broadcast control
bandwidth allocation and data transceiving method. The method
includes: acquiring location information and channel distribution
information that are of current user equipment; preprocessing a
time-frequency resource of a channel according to the location
information and the channel distribution information that are of
the current user equipment; updating bandwidth allocation
information according to the preset bandwidth and quantities of
each data channel and each control channel and the preset
quantities of repetitions corresponding to each data channel and
each control channel; and broadcasting broadcast information to the
user equipment by using a broadcast channel.
Inventors: |
LI; Zhenyu; (Beijing,
CN) ; Zhu; Song; (Beijing, CN) ; Guo;
Xiaolong; (Beijing, CN) ; Yu; Zhiqin;
(Shenzhen, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HUAWEI TECHNOLOGIES CO., LTD. |
Shenzhen |
|
CN |
|
|
Assignee: |
HUAWEI TECHNOLOGIES CO.,
LTD.
Shenzhen
CN
|
Family ID: |
53477413 |
Appl. No.: |
15/192054 |
Filed: |
June 24, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
PCT/CN2013/090753 |
Dec 27, 2013 |
|
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15192054 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W 8/08 20130101; H04W
28/0278 20130101; H04W 4/06 20130101; H04W 84/042 20130101; H04L
12/6418 20130101; H04W 74/0833 20130101; H04W 28/20 20130101; H04W
56/001 20130101; H04W 88/08 20130101; H04W 64/00 20130101; H04W
72/048 20130101; H04W 72/005 20130101 |
International
Class: |
H04W 28/20 20060101
H04W028/20; H04W 64/00 20060101 H04W064/00; H04W 72/00 20060101
H04W072/00; H04W 56/00 20060101 H04W056/00; H04W 74/08 20060101
H04W074/08; H04W 4/02 20060101 H04W004/02; H04W 4/06 20060101
H04W004/06; H04W 28/02 20060101 H04W028/02; H04W 72/04 20060101
H04W072/04; H04W 8/08 20060101 H04W008/08 |
Claims
1. A broadcast control bandwidth allocation and data transceiving
method, wherein the method comprises: acquiring location
information and channel distribution information that are of each
user equipment, wherein the location information of each user
equipment is used to indicate coordinates of each user equipment,
and the channel distribution information is used to indicate a
channel used by each user equipment and a quantity of repetitions
of sending data on the channel by each user equipment; determining,
according to the location information and the channel distribution
information that are of each user equipment, bandwidth and
quantities of data channels and control channels and quantities of
repetitions corresponding to the data channel and the control
channel; updating bandwidth allocation information according to the
bandwidth and the quantities of data channels and control channels
and the quantities of repetitions corresponding to the data channel
and the control channel, wherein the bandwidth allocation
information is used to indicate time-frequency positions of and the
quantities of repetitions of the control channel and the data
channel; and sending broadcast information to each user equipment
by using a broadcast channel, wherein the broadcast information
comprises at least the bandwidth allocation information, so that
each user equipment determines, according to the bandwidth
allocation information, a control channel and a data channel that
are corresponding to quantities of repetitions required for sending
data, and then each user equipment chooses to receive and send data
on the corresponding control channel and data channel.
2. The broadcast control bandwidth allocation and data transceiving
method according to claim 1, wherein the determining, according to
the location information and the channel distribution information
that are of each user equipment, bandwidth and quantities of data
channels and control channels and quantities of repetitions
corresponding to the data channel and the control channel
specifically comprises: collecting statistics on the location
information and the channel distribution information that are of
each user equipment to obtain user equipment allocation ratios of
each data channel and each control channel that are of a
corresponding quantity of repetitions; configuring, according to
the user equipment allocation ratios of each data channel and each
control channel that are of the corresponding quantity of
repetitions, occupied time of each data channel and each control
channel that are of the corresponding quantity of repetitions; and
determining, according to the occupied time of each data channel
and each control channel that are corresponding to the quantities
of repetitions, the bandwidth and the quantities of data channels
and control channels and the quantities of repetitions
corresponding to the data channel and the control channel.
3. The broadcast control bandwidth allocation and data transceiving
method according to claim 1, wherein the determining, according to
the location information and the channel distribution information
that are of each user equipment, bandwidth and quantities of data
channels and control channels and quantities of repetitions
corresponding to the data channel and the control channel
specifically comprises: collecting statistics on the location
information and the channel distribution information that are of
each user equipment to obtain user equipment allocation ratios of
each data channel and each control channel that are of a
corresponding quantity of repetitions; configuring, according to
the user equipment allocation ratios of each data channel and each
control channel that are of the corresponding quantity of
repetitions, occupied frequencies and/or occupied time frequencies
of each data channel and each control channel that are of the
corresponding quantity of repetitions; and determining, according
to the occupied frequencies and/or the occupied time frequencies of
each data channel and each control channel that are of a different
quantity of repetitions, the bandwidth and the quantities of data
channels and control channels and the quantities of repetitions
corresponding to the data channel and the control channel.
4. The broadcast control bandwidth allocation and data transceiving
method according to claim 1, wherein the bandwidth allocation
information further comprises frequency positions of uplink and
downlink narrowband and a position fixedly used as a time-frequency
resource position of a random access channel RACH; wherein the
frequency positions of the uplink and downlink narrowband are used
to indicate frequency band resources occupied by the uplink and
downlink narrowband; and the time-frequency resource position of
the random access channel RACH is used to indicate a position of a
contention-based access resource.
5. The broadcast control bandwidth allocation and data transceiving
method according to claim 1, wherein the broadcast information
further comprises one or more types of the following information:
access control information, a cell ID, public land mobile network
PLMN information, a system frame number, a system message change
indication, random backoff time, and a random backoff probability,
wherein the access control information is used to indicate a type
of user equipment that is allowed for access or allowed to send
data; the cell ID is physical identification information of a cell,
and is used to distinguish different cells; the PLMN information is
used to distinguish different operator networks, so as to perform
access control; the system frame number is used to indicate a
current running time point of a base station; the system message
change indication is used to indicate whether a system message of
user equipment changes; the random backoff time is used to indicate
sleep duration of user equipment after the user equipment fails to
send data; and the random backoff probability is used to indicate
whether to perform a backoff operation, and a probability of
performing the backoff operation.
6. The broadcast control bandwidth allocation and data transceiving
method according to claim 1, after the sending broadcast
information to each user equipment by using a broadcast channel,
further comprising: receiving the channel distribution information
and data embedded with a user equipment identity UEID, wherein the
channel distribution information and the data are sent by the user
equipment according to a control channel and a data channel that
are of a corresponding quantity of repetitions; or receiving the
channel distribution information and a part of data embedded with a
user equipment identity UEID and a buffer status report BSR,
wherein the channel distribution information and the part of data
are sent by the user equipment according to a control channel and a
data channel that are of a corresponding quantity of
repetitions.
7. The broadcast control bandwidth allocation and data transceiving
method according to claim 6, after the receiving the channel
distribution information and data embedded with a user equipment
identity UEID, wherein the channel distribution information and the
data are sent by the user equipment according to a control channel
and a data channel that are of a corresponding quantity of
repetitions, further comprising: parsing the data and the channel
distribution information to obtain a second quantity of
repetitions; and sending scheduling information that comprises the
second quantity of repetitions to the user equipment, so that the
user equipment adjusts an original quantity of repetitions to the
second quantity of repetitions according to the scheduling
information to perform data sending.
8. The broadcast control bandwidth allocation and data transceiving
method according to claim 6, after the receiving the channel
distribution information and data embedded with a user equipment
identity UEID, wherein the channel distribution information and the
data are sent by the user equipment according to a control channel
and a data channel that are of a corresponding quantity of
repetitions, or the receiving the channel distribution information
and a part of data embedded with a user equipment identity UEID and
a buffer status report BSR, wherein the channel distribution
information and the part of data are sent by the user equipment
according to a control channel and a data channel that are of a
corresponding quantity of repetitions, further comprising: if the
user equipment fails to send the data according to the control
channel and the data channel that are of the corresponding quantity
of repetitions, and a quantity of data retransmissions performed by
the user equipment according to a random backoff probability in the
broadcast information is greater than a preset maximum threshold,
acquiring data that is sent by the user equipment on a control
channel and a data channel that are of a corresponding third
quantity of repetitions; and parsing a user equipment identity UEID
embedded in the data that is on the control channel and the data
channel that are of the third quantity of repetitions, so that a
base station sends a control command on the control channel and the
data channel that are of the third quantity of repetitions.
9. The broadcast control bandwidth allocation and data transceiving
method according to claim 6, after the receiving the channel
distribution information and data embedded with a user equipment
identity UEID, wherein the channel distribution information and the
data are sent by the user equipment according to a control channel
and a data channel that are of a corresponding quantity of
repetitions, or the receiving the channel distribution information
and a part of data embedded with a user equipment identity UEID and
a buffer status report BSR, wherein the channel distribution
information and the part of data are sent by the user equipment
according to a control channel and a data channel that are of a
corresponding quantity of repetitions, further comprising: if a
quantity of repetitions required for data changes into a fourth
quantity of repetitions after the user equipment completes an
operation of downlink synchronization, acquiring a re-selection
status that is sent by the user equipment and is of a control
channel and a data channel that are of the corresponding fourth
quantity of repetitions, and then sending signaling to the user
equipment on the control channel and the data channel that are of
the fourth quantity of repetitions, wherein the operation of
downlink synchronization is used as a synchronization operation of
eliminating a time difference between the user equipment and a base
station caused by sleeping of the user equipment.
10. A broadcast control bandwidth allocation and data transceiving
method, wherein the method comprises: receiving broadcast
information broadcast by a base station, wherein the broadcast
information comprises at least bandwidth allocation information,
and the bandwidth allocation information is generated by the base
station by acquiring location information and channel distribution
information that are of each user equipment and determining
bandwidth and quantities of data channels and control channels and
quantities of repetitions corresponding to the data channel and the
control channel, wherein the location information of each user
equipment is used to indicate coordinates of each user equipment,
and the channel distribution information is used to indicate a
channel used by each user equipment and a quantity of repetitions
of sending data on the channel; determining, according to the
broadcast information in a broadcast channel and the recorded
channel distribution information of each user equipment, a control
channel and a data channel that are of a corresponding first
quantity of repetitions; and sending data and the channel
distribution information to the base station according to a preset
rule by using the control channel and the data channel that are of
the first quantity of repetitions.
11. The broadcast control bandwidth allocation and data
transceiving method according to claim 10, wherein the sending data
and the channel distribution information to the base station
according to a preset rule by using the control channel and the
data channel that are of the first quantity of repetitions
specifically comprises: if the data can be completely sent within
one frame, embedding a user equipment identity UEID in the
transmitted data; and sending, to the base station by using the
control channel and the data channel that are of the first quantity
of repetitions, the channel distribution information and the data
embedded with the user equipment identity UEID.
12. The broadcast control bandwidth allocation and data
transceiving method according to claim 10, wherein the sending data
and the channel distribution information to the base station
according to a preset rule by using the control channel and the
data channel that are of the first quantity of repetitions
specifically comprises: if the data cannot be completely sent
within one frame, separately embedding a user equipment identity
UEID and a buffer status report BSR in the transmitted data;
sending, to the base station by using the control channel and the
data channel that are of the first quantity of repetitions, the
channel distribution information and a part of the transmitted data
embedded with the user equipment identity UEID and the buffer
status report BSR; acquiring scheduling information of the base
station, wherein the scheduling information comprises an adjusted
second quantity of repetitions that is obtained after the base
station parses the part of data embedded with the user equipment
identity UEID and the buffer status report BSR; and sending a
remaining part of data to the base station by using the second
quantity of repetitions in the scheduling information.
13. The broadcast control bandwidth allocation and data
transceiving method according to claim 10, after the determining,
according to the broadcast information in a broadcast channel and
the recorded channel distribution information of each user
equipment, a control channel and a data channel that are of a
corresponding first quantity of repetitions, further comprising:
recording, as historical data, the first quantity of repetitions of
the corresponding control channel and data channel that is used to
send the data, so that when re-sending the data, the user equipment
invokes the historical data to determine the control channel and
the data channel that are of the corresponding first quantity of
repetitions.
14. The broadcast control bandwidth allocation and data
transceiving method according to claim 10, wherein the determining,
according to the broadcast information in a broadcast channel and
the recorded channel distribution information of the user
equipment, a control channel and a data channel that are of a
corresponding first quantity of repetitions specifically comprises:
determining whether the control channel and the data channel that
are of the data and of the first quantity of repetitions are
recorded; if the control channel and the data channel that are of
the data and of the first quantity of repetitions are not recorded,
performing information combining on the continuously received
broadcast information; and parsing the combined broadcast
information according to preset parsing code to determine the
control channel and the data channel that are of the corresponding
first quantity of repetitions; or if the control channel and the
data channel that are of the data and of the first quantity of
repetitions are recorded, invoking historical data to send data to
the base station by re-using the control channel and the data
channel that are of the first quantity of repetitions.
15. The broadcast control bandwidth allocation and data
transceiving method according to claim 10, after the sending data
and the channel distribution information to the base station
according to a preset rule by using the control channel and the
data channel that are of the first quantity of repetitions, further
comprising: if sending the data to the base station according to
the preset rule by using the control channel and the data channel
that are of the first quantity of repetitions fails, performing a
preset time of backoff according to random backoff time in the
broadcast information; monitoring the broadcast information in the
broadcast channel; and re-sending the data to the base station
according to a random backoff probability in the broadcast
information.
16. The broadcast control bandwidth allocation and data
transceiving method according to claim 15, after the re-sending the
data to the base station according to a random backoff probability
in the broadcast information, further comprising: if a quantity of
data retransmissions performed according to the random backoff
probability in the broadcast information is greater than a preset
maximum threshold, re-selecting, according to the current first
quantity of repetitions of the control channel and the data
channel, a control channel and a data channel that are of a third
quantity of repetitions that is greater than the first quantity of
repetitions; and sending the data and the channel distribution
information to the base station by using the control channel and
the data channel that are of the third quantity of repetitions, so
that the base station sends signaling to the user equipment on the
re-selected control channel and data channel that are of the third
quantity of repetitions, wherein the data is embedded with a user
equipment identity UEID.
17. The broadcast control bandwidth allocation and data
transceiving method according to claim 10, wherein when the user
equipment is woken up from a sleep state, the method further
comprises: performing an operation of downlink synchronization with
the base station, so as to eliminate a time difference between the
user equipment and the base station caused by sleeping of the user
equipment; acquiring a time for completing the operation of
downlink synchronization; and determining, according to the time
for the operation of downlink synchronization and a preset
relationship between a preset time for completing the operation of
downlink synchronization and channel selection, a control channel
and a data channel that are of a fourth quantity of
repetitions.
18. The broadcast control bandwidth allocation and data
transceiving method according to claim 17, comprising: if the
fourth quantity of repetitions is different from the first quantity
of repetitions, sending the data and the channel distribution
information to the base station according to the control channel
and the data channel that are of the fourth quantity of
repetitions, so that the base station sends signaling to the user
equipment on the re-selected control channel and data channel that
are of the fourth quantity of repetitions.
19. A base station, comprising: a receiver, configured to acquire
location information and channel distribution information that are
of each user equipment, wherein the location information of each
user equipment is used to indicate coordinates of each user
equipment, and the channel distribution information is used to
indicate a channel used by each user equipment and a quantity of
repetitions of sending data on the channel; a processor, configured
to: determine, according to the location information and the
channel distribution information that are of each user equipment,
bandwidth and quantities of data channels and control channels and
quantities of repetitions corresponding to the data channel and the
control channel; and update bandwidth allocation information
according to the bandwidth and the quantities of data channels and
control channels and the quantities of repetitions corresponding to
the data channel and the control channel, wherein the bandwidth
allocation information is used to indicate time-frequency positions
of and the quantities of repetitions of the control channel and the
data channel; and a sender, configured to send broadcast
information to each user equipment by using a broadcast channel,
wherein the broadcast information comprises at least the bandwidth
allocation information, so that each user equipment determines,
according to the bandwidth allocation information, a control
channel and a data channel that are of a corresponding quantity of
repetitions and are required for sending data.
20. The base station according to claim 19, wherein: the processor
is further configured to: collect statistics on the location
information and the channel distribution information that are of
each user equipment to obtain user equipment allocation ratios of
each data channel and each control channel that are of a
corresponding quantity of repetitions; configure, according to the
user equipment allocation ratios of each data channel and each
control channel that are of the corresponding quantity of
repetitions, occupied time of each data channel and each control
channel that are of the corresponding quantity of repetitions; and
determine, according to the occupied time of each data channel and
each control channel that are of a different quantity of
repetitions, the bandwidth and the quantities of data channels and
control channels and the quantities of repetitions corresponding to
the data channel and the control channel.
21. The base station according to claim 20, wherein: the processor
is further configured to: collect statistics on the location
information and the channel distribution information that are of
each user equipment to obtain user equipment allocation ratios of
each data channel and each control channel that are of a
corresponding quantity of repetitions; configure, according to the
user equipment allocation ratios of each data channel and each
control channel that are of the corresponding quantity of
repetitions, occupied frequencies and/or occupied time frequencies
of each data channel and each control channel that are of the
corresponding quantity of repetitions; and determine, according to
the occupied frequencies and/or the occupied time frequencies of
each data channel and each control channel that are of a different
quantity of repetitions, the bandwidth and the quantities of data
channels and control channels and the quantities of repetitions
corresponding to the data channel and the control channel.
22. The base station according to claim 19, wherein: the receiver
is further configured to receive the channel distribution
information and data embedded with a user equipment identity UEID,
wherein the channel distribution information and the data are sent
by the user equipment according to a control channel and a data
channel that are of a corresponding quantity of repetitions, and
the user equipment is one of the user equipments; or receive the
channel distribution information and a part of data embedded with a
user equipment identity UEID and a buffer status report BSR,
wherein the channel distribution information and the part of data
are sent by the user equipment according to a control channel and a
data channel that are of a corresponding quantity of
repetitions.
23. The base station according to claim 22, wherein: the receiver
is further configured to parse the channel distribution information
and the part of data embedded with the user equipment identity UEID
and the buffer status report BSR to obtain a parsed second quantity
of repetitions, wherein the channel distribution information and
the part of data are sent on the control channel and the data
channel that are of the corresponding quantity of repetitions; and
the sender is further configured to send scheduling information
that comprises the second quantity of repetitions to the user
equipment, so that the user equipment adjusts an original quantity
of repetitions to the second quantity of repetitions according to
the scheduling information to perform data sending.
24. The base station according to claim 19, wherein: the receiver
is further configured to: if the user equipment fails to send the
data by using the control channel and the data channel that are of
the corresponding quantity of repetitions, and a quantity of data
retransmissions performed by the user equipment according to a
random backoff probability in the broadcast information is greater
than a preset maximum threshold, acquire data that is sent by the
user equipment on a control channel and a data channel that are of
a corresponding third quantity of repetitions; and the processor is
further configured to parse a user equipment identity UEID embedded
in the data that is on the control channel and the data channel
that are of the third quantity of repetitions, so that the base
station sends a control command on the control channel and the data
channel that are of the third quantity of repetitions.
25. The base station according to claim 19, wherein: the receiver
is further configured to: if a quantity of repetitions required for
data changes into a fourth quantity of repetitions after the user
equipment completes an operation of downlink synchronization,
acquire a re-selection status that is sent by the user equipment
and is of a control channel and a data channel that are of the
corresponding fourth quantity of repetitions, so as to complete
sending of signaling to the user equipment on the control channel
and the data channel that are of the fourth quantity of
repetitions, wherein the operation of downlink synchronization is
used as a synchronization operation of eliminating a time
difference between the user equipment and the base station caused
by sleeping of the user equipment.
26. User equipment, comprising: a receiver, configured to receive
broadcast information broadcast by a base station, wherein the
broadcast information comprises at least bandwidth allocation
information, the bandwidth allocation information is determined by
the base station by acquiring location information and channel
distribution information that are of each user equipment, wherein
the location information of each user equipment is used to indicate
coordinates of each user equipment, and the channel distribution
information is used to indicate a channel used by each user
equipment and a quantity of repetitions of sending data on the
channel; and then, by determining, by the base station according to
the location information and the channel distribution information
that are of each user equipment, bandwidth and quantities of data
channels and control channels and quantities of repetitions
corresponding to the data channel and the control channel, and
further by updating the bandwidth allocation information according
to the bandwidth and the quantities of data channels and control
channels and the quantities of repetitions corresponding to the
data channel and the control channel, wherein the bandwidth
allocation information comprises preset bandwidth and quantities of
each data channel and each control channel and preset quantities of
repetitions corresponding to each data channel and each control
channel, frequency channel number positions of uplink and downlink
narrowband, and a position fixedly used as a time-frequency
resource position of a random access channel RACH, wherein the
time-frequency resource position of the random access channel RACH
is used to indicate a position of a resource that is used for
competitive access; a processor, configured to determine, according
to the broadcast information in a broadcast channel and a recorded
running status of the user equipment, a control channel and a data
channel that are of a corresponding first quantity of repetitions;
and a sender, configured to send data and the channel distribution
information to the base station according to a preset rule by using
the control channel and the data channel that are of the first
quantity of repetitions.
27. The base station according to claim 26, wherein: the processor
is further configured to: if it is determined that the data can be
completely sent within one frame, embed a user equipment identity
UEID in the transmitted data; and the sender is further configured
to send, to the base station according to the control channel and
the data channel that are of the first quantity of repetitions, the
channel distribution information and the data embedded with the
user equipment identity UEID.
28. The base station according to claim 27, wherein: the processor
is further configured to: if it is determined that the data cannot
be completely sent within one frame, separately embed a user
equipment identity UEID and a buffer status report BSR in the
transmitted data; the receiver is further configured to acquire
scheduling information of the base station, wherein the scheduling
information comprises an adjusted second quantity of uplink
repetitions that is obtained after the base station parses a part
of data embedded with the user equipment identity UEID and the
buffer status report BSR; and the sender is further configured to:
send, to the base station according to the control channel and the
data channel that are of the first quantity of repetitions, the
channel distribution information and the part of the transmitted
data embedded with the user equipment identity UEID and the buffer
status report BSR; and send a remaining part of data to the base
station according to the second quantity of repetitions in the
scheduling information.
29. The base station according to claim 26, wherein the user
equipment further comprises a memory, which is configured to
record, as historical data, the first quantity of repetitions of
the corresponding control channel and data channel that send the
data, so that when re-sending the data, the user equipment invokes
the historical data to determine the control channel and data
channel that are of the corresponding first quantity of
repetition.
30. The base station according to claim 26, wherein: the processor
is further configured to: determine whether the control channel and
the data channel that are of the data and of the first quantity of
repetitions are recorded; and if the control channel and the data
channel that are of the data and of the first quantity of
repetitions are not recorded, perform information combining on the
continuously received broadcast information, and parse the combined
broadcast information according to preset parsing code to determine
the control channel and the data channel that are of the
corresponding first quantity of repetitions; or if the control
channel and the data channel that are of the data and of the first
quantity of repetitions are recorded, send data to the base station
by re-using the control channel and the data channel that are of
the first quantity of repetitions.
31. The base station according to claim 26, wherein: the processor
is further configured to: if sending the data to the base station
according to the preset rule by using the control channel and the
data channel that are of the first quantity of repetitions fails,
perform a preset time of backoff according to random backoff time
in the broadcast information; and monitor the broadcast information
in the broadcast channel; and the sender is further configured to
re-send the data to the base station according to a random backoff
probability in the broadcast information.
32. The base station according to claim 31, wherein: the processor
is further configured to: if a quantity of data retransmissions
performed according to the random backoff probability in the
broadcast information is greater than a preset maximum threshold,
re-select, according to the current first quantity of repetitions
of the control channel and the data channel, a control channel and
a data channel that are of a third quantity of repetitions that is
greater than the first quantity of repetitions; and the sender is
further configured to send the data and the channel distribution
information to the base station according to the control channel
and the data channel that are of the third quantity of repetitions,
so that the base station sends signaling to the user equipment on
the re-selected control channel and data channel that are of the
third quantity of repetitions, wherein the data is embedded with a
user equipment identity UEID.
33. The base station according to claim 26, wherein: the processor
is further configured to: perform an operation of downlink
synchronization with the base station, so as to eliminate a time
difference between the user equipment and the base station caused
by sleeping of the user equipment; and determine, according to a
time for the operation of downlink synchronization and a preset
relationship between a preset time for the operation of downlink
synchronization and channel selection, a control channel and a data
channel that are of a fourth quantity of repetitions; and the
receiver is further configured to acquire the time for completing
the operation of downlink synchronization.
34. The base station according to claim 33, wherein: the sender is
further configured to send the data and the channel distribution
information to the base station according to the control channel
and the data channel that are of the fourth quantity of
repetitions, so that the base station sends signaling to the user
equipment on the re-selected control channel and data channel that
are of the fourth quantity of repetitions.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of International
Application No. PCT/CN2013/090753, filed on Dec. 27, 2013, which is
incorporated herein by reference in its entirety.
TECHNICAL FIELD
[0002] The present invention relates to the communications field,
and in particular, to a broadcast control bandwidth allocation and
data transceiving method and an apparatus.
BACKGROUND
[0003] With the increasing development of the science and
technology, data interaction between a base station and user
equipment is increasingly frequent, and accordingly, a requirement
on data interaction quality is greatly improved, so that
requirements of the user equipment on an area covered by a signal
sent by the base station and on signal transceiving quality are
becoming increasingly high.
[0004] In the prior art, two factors, that is, a cost and a
coverage area, are mainly considered in M2M (machine to machine),
where a coverage area is extended by means of retransmission by
using a spread spectrum method, and costs of user equipment are
decreased in a manner of sending data on narrowband. For example,
coverage of a first distance near a base station is a normal
coverage area in which a requirement for data interaction between
the base station and user equipment can be satisfied without
repeatedly sending data; however, coverage of a second distance
(the second distance is greater than the first distance) near the
base station is an extended coverage area in which retransmission
(for example, 8-fold repetitions are referred to as 8X, 64-fold
repetitions are referred to as 64X, or repetitions of another
multiple appear) need to be performed in a spread spectrum manner
to satisfy a requirement for data interaction between the base
station and user equipment.
[0005] However, in a network such as a WLAN (Wireless Local Area
Networks, wireless local area network) or Zigbee, a CSMA (Carrier
Sense Multiple Access, carrier sense multiple access) technology is
generally used to resolve a contention medium access control
problem. That is, before data is sent, it is monitored whether a
channel is idle; if the channel is idle, the data is immediately
sent; if the channel is busy, the data is sent after a period of
time until information transmission in the channel is completed. If
two or more than two nodes simultaneously propose a sending request
after sending of a previous segment of information is completed, it
is determined as a collision. If a collision is monitored, sending
of data is immediately stopped, and an attempt is made again after
a period of random time. When user equipments are located in areas
of different coverage levels, and user equipment that needs a
larger quantity of repetitions and user equipment that needs higher
channel quality contend for sending data, it is difficult for the
user equipment that needs a larger quantity of repetitions to
obtain a resource by means of contention, and a "starvation"
phenomenon occurs. However, there is no good method in the prior
art to resolve such a case.
SUMMARY
[0006] According to a broadcast control bandwidth allocation and
data transceiving method and an apparatus provided in embodiments
of the present invention, effective dynamic division is performed
on a time-frequency channel resource of a channel, and an effective
data interaction mechanism is established between user equipment
and a base station, so that the user equipment is allocated with an
effective resource by means of contention in a relatively fair
environment, thereby avoiding a "starvation" phenomenon.
[0007] To achieve the foregoing objective, the following technical
solutions are used in the embodiments of the present invention:
[0008] According to a first aspect, an embodiment of the present
invention provides a broadcast control bandwidth allocation and
data transceiving method, including:
[0009] acquiring location information and channel distribution
information that are of each user equipment, where the location
information of each user equipment is used to indicate coordinates
of each user equipment, and the channel distribution information is
used to indicate a channel used by each user equipment and a
quantity of repetitions of sending data on the channel;
[0010] determining, according to the location information and the
channel distribution information that are of each user equipment,
bandwidth and quantities of data channels and control channels and
quantities of repetitions corresponding to the data channel and the
control channel;
[0011] updating bandwidth allocation information according to the
bandwidth and the quantities of data channels and control channels
and the quantities of repetitions corresponding to the data channel
and the control channel, where the bandwidth allocation information
is used to indicate time-frequency positions of and the quantities
of repetitions of the control channel and the data channel; and
[0012] sending broadcast information to each user equipment by
using a broadcast channel, where the broadcast information includes
at least the bandwidth allocation information, so that each user
equipment determines, according to the bandwidth allocation
information, a control channel and a data channel that are of a
corresponding quantity of repetitions and are required for sending
data, and then each user equipment chooses to receive and send data
on the corresponding control channel and data channel.
[0013] In a first possible implementation manner of the first
aspect, the determining, according to the location information and
the channel distribution information that are of each user
equipment, bandwidth and quantities of data channels and control
channels and quantities of repetitions corresponding to the data
channel and the control channel specifically includes:
[0014] collecting statistics on the location information and the
channel distribution information that are of each user equipment to
obtain user equipment allocation ratios of each data channel and
each control channel that are of a corresponding quantity of
repetitions;
[0015] configuring, according to the user equipment allocation
ratios of each data channel and each control channel that are of
the corresponding quantity of repetitions, occupied time of each
data channel and each control channel that are of the corresponding
quantity of repetitions; and
[0016] determining, according to the occupied time of each data
channel and each control channel that are of a different quantity
of repetitions, the bandwidth and the quantities of data channels
and control channels and the quantities of repetitions
corresponding to the data channel and the control channel
[0017] In a second possible implementation manner of the first
aspect, the determining, according to the location information and
the channel distribution information that are of each user
equipment, bandwidth and quantities of data channels and control
channels and quantities of repetitions corresponding to the data
channel and the control channel specifically includes:
[0018] collecting statistics on the location information and the
channel distribution information that are of each user equipment to
obtain user equipment allocation ratios of each data channel and
each control channel that are of a corresponding quantity of
repetitions;
[0019] configuring, according to the user equipment allocation
ratios of each data channel and each control channel that are of
the corresponding quantity of repetitions, occupied frequencies
and/or occupied time frequencies of each data channel and each
control channel that are of the corresponding quantity of
repetitions; and
[0020] determining, according to the occupied frequencies and/or
the occupied time frequencies of each data channel and each control
channel that are of a different quantity of repetitions, the
bandwidth and the quantities of data channels and control channels
and the quantities of repetitions corresponding to the data channel
and the control channel.
[0021] In a third possible implementation manner of the first
aspect, after the sending broadcast information to each user
equipment by using a broadcast channel, where the broadcast
information includes at least the bandwidth allocation information,
so that each user equipment determines, according to the bandwidth
allocation information, a control channel and a data channel that
are of a corresponding quantity of repetitions and are required for
sending data, the method further includes:
[0022] receiving the channel distribution information and data
embedded with a user equipment identity UEID (User Equipment
Identity, which is a terminal identity), where the channel
distribution information and the data are sent by the user
equipment according to a control channel and a data channel that
are of a corresponding quantity of repetitions, and the user
equipment is one of the user equipments; or
[0023] receiving the channel distribution information and a part of
data embedded with a user equipment identity UEID and a buffer
status report BSR (Buffer state report, buffer status report),
where the channel distribution information and the part of data are
sent by the user equipment according to a control channel and a
data channel that are of a corresponding quantity of
repetitions.
[0024] With reference to the foregoing third possible
implementation manner of the first aspect, in a fourth possible
implementation manner of the first aspect, after the receiving the
channel distribution information and data embedded with a user
equipment identity UEID, where the channel distribution information
and the data are sent by the user equipment according to a control
channel and a data channel that are of a corresponding quantity of
repetitions, the method further includes:
[0025] parsing the channel distribution information and the part of
data embedded with the user equipment identity UEID and the buffer
status report BSR to obtain a parsed second quantity of
repetitions, where the channel distribution information and the
part of data are sent on the control channel and the data channel
that are of the corresponding quantity of repetitions; and
[0026] sending scheduling information that includes the second
quantity of repetitions to the user equipment, so that the user
equipment adjusts an original quantity of repetitions to the second
quantity of repetitions according to the scheduling information to
perform data sending.
[0027] In a fifth possible implementation manner of the first
aspect, after the receiving the channel distribution information
and data embedded with a user equipment identity UEID, where the
channel distribution information and the data are sent by each user
equipment according to a control channel and a data channel that
are of a corresponding quantity of repetitions, or the receiving
the channel distribution information and a part of data embedded
with a user equipment identity UEID and a buffer status report BSR,
where the channel distribution information and the part of data are
sent by each user equipment according to a control channel and a
data channel that are of a corresponding quantity of repetitions,
the method further includes:
[0028] if the user equipment fails to send the data by using the
control channel and the data channel that are of the corresponding
quantity of repetitions, and a quantity of data retransmissions
performed by the user equipment according to a random backoff
probability in the broadcast information is greater than a preset
maximum threshold, acquiring data that is sent by the user
equipment on a control channel and a data channel that are of a
corresponding third quantity of repetitions; and
[0029] parsing a user equipment identity UEID embedded in the data
that is on the control channel and the data channel that are of the
third quantity of repetitions, so that a base station sends a
control command on the control channel and the data channel that
are of the third quantity of repetitions.
[0030] In a sixth possible implementation manner of the first
aspect, after the receiving the channel distribution information
and data embedded with a user equipment identity UEID, where the
channel distribution information and the data are sent by each user
equipment according to a control channel and a data channel that
are of a corresponding quantity of repetitions, or the receiving
the channel distribution information and a part of data embedded
with a user equipment identity UEID and a buffer status report BSR,
where the channel distribution information and the part of data are
sent by each user equipment according to a control channel and a
data channel that are of a corresponding quantity of repetitions,
the method further includes:
[0031] if a quantity of repetitions required for data changes into
a fourth quantity of repetitions after the user equipment completes
an operation of downlink synchronization, acquiring a re-selection
status that is sent by the user equipment and is of a control
channel and a data channel that are of the corresponding fourth
quantity of repetitions, and then completing sending of signaling
to the user equipment on the control channel and the data channel
that are of the fourth quantity of repetitions, where the operation
of downlink synchronization is used as a synchronization operation
of eliminating a time difference between the user equipment and a
base station caused by sleeping of the user equipment.
[0032] According to a second aspect, an embodiment of the present
invention provides a broadcast control bandwidth allocation and
data transceiving method, including:
[0033] receiving broadcast information broadcast by a base station,
where the broadcast information includes at least bandwidth
allocation information, the bandwidth allocation information is
determined by the base station by acquiring location information
and channel distribution information that are of each user
equipment, where the location information of each user equipment is
used to indicate coordinates of each user equipment, and the
channel distribution information is used to indicate a channel used
by each user equipment and a quantity of repetitions of sending
data on the channel; and then, by determining, by the base station
according to the location information and the channel distribution
information that are of each user equipment, bandwidth and
quantities of data channels and control channels and quantities of
repetitions corresponding to the data channel and the control
channel, and further by updating the bandwidth allocation
information according to the bandwidth and the quantities of data
channels and control channels and the quantities of repetitions
corresponding to the data channel and the control channel, where
the bandwidth allocation information includes preset bandwidth and
quantities of each data channel and each control channel and preset
quantities of repetitions corresponding to each data channel and
each control channel, frequency channel number positions of uplink
and downlink narrowband, and a position fixedly used as a
time-frequency resource position of a random access channel RACH,
where the time-frequency resource position of the random access
channel RACH is used to indicate a position of a resource that is
used for competitive access;
[0034] determining, according to the broadcast information in a
broadcast channel and the recorded channel distribution information
of each user equipment, a control channel and a data channel that
are of a corresponding first quantity of repetitions; and
[0035] sending data and the channel distribution information to the
base station according to a preset rule by using the control
channel and the data channel that are of the first quantity of
repetitions.
[0036] In a first possible implementation manner of the second
aspect, the sending data and the channel distribution information
to the base station according to a preset rule by using the control
channel and the data channel that are of the first quantity of
repetitions specifically includes:
[0037] if the data can be completely sent within one frame,
embedding a user equipment identity UEID in the transmitted data;
and
[0038] sending, to the base station according to the control
channel and the data channel that are of the first quantity of
repetitions, the channel distribution information and the data
embedded with the user equipment identity UEID.
[0039] With reference to the foregoing first possible
implementation manner of the second aspect, in a second possible
implementation manner of the second aspect, the sending data and
the channel distribution information to the base station according
to a preset rule by using the control channel and the data channel
that are of the first quantity of repetitions further specifically
includes:
[0040] if the data cannot be completely sent within one frame,
separately embedding a user equipment identity UEID and a buffer
status report BSR in the transmitted data;
[0041] sending, to the base station according to the control
channel and the data channel that are of the first quantity of
repetitions, the channel distribution information and a part of the
transmitted data embedded with the user equipment identity UEID and
the buffer status report BSR;
[0042] acquiring scheduling information of the base station, where
the scheduling information includes an adjusted second quantity of
uplink repetitions that is obtained after the base station parses
the part of data embedded with the user equipment identity UEID and
the buffer status report BSR; and
[0043] sending a remaining part of data to the base station
according to the second quantity of repetitions in the scheduling
information.
[0044] In a third possible implementation manner of the second
aspect, after the determining, according to the broadcast
information in a broadcast channel and a recorded running status of
the user equipment, a control channel and a data channel that are
of a corresponding first quantity of repetitions, the method
further includes:
[0045] recording, as historical data, the first quantity of
repetitions of the corresponding control channel and data channel
that send the data, so that when re-sending the data, the user
equipment invokes the historical data to determine the control
channel and the data channel that are of the corresponding first
quantity of repetitions.
[0046] In a fourth possible implementation manner of the second
aspect, the determining, according to the broadcast information in
a broadcast channel and a recorded running status of the user
equipment, a control channel and a data channel that are of a
corresponding first quantity of repetitions specifically
includes:
[0047] determining whether the control channel and the data channel
that are of the data and of the first quantity of repetitions are
recorded;
[0048] if the control channel and the data channel that are of the
data and of the first quantity of repetitions are not recorded,
performing information combining on the continuously received
broadcast information; and
[0049] parsing the combined broadcast information according to
preset parsing code to determine the control channel and the data
channel that are of the corresponding first quantity of
repetitions; or
[0050] if the control channel and the data channel that are of the
data and of the first quantity of repetitions are recorded, sending
data to the base station by re-using the control channel and the
data channel that are of the first quantity of repetitions.
[0051] In a fifth possible implementation manner of the second
aspect, after the sending data and the channel distribution
information to the base station according to a preset rule by using
the control channel and the data channel that are of the first
quantity of repetitions, the method further includes:
[0052] if sending the data to the base station according to the
preset rule by using the control channel and the data channel that
are of the first quantity of repetitions fails, performing a preset
time of backoff according to random backoff time in the broadcast
information;
[0053] monitoring the broadcast information in the broadcast
channel; and
[0054] re-sending the data to the base station according to a
random backoff probability in the broadcast information.
[0055] With reference to the foregoing fifth possible
implementation manner of the second aspect, in a sixth possible
implementation manner of the second aspect, after the re-sending
the data to the base station according to a random backoff
probability in the broadcast information, the method further
includes:
[0056] if a quantity of data retransmissions performed according to
the random backoff probability in the broadcast information is
greater than a preset maximum threshold, re-selecting, according to
the current first quantity of repetitions of the control channel
and the data channel, a control channel and a data channel that are
of a third quantity of repetitions that is greater than the first
quantity of repetitions; and
[0057] sending the data and the channel distribution information to
the base station according to the control channel and the data
channel that are of the third quantity of repetitions, so that the
base station sends signaling to the user equipment on the
re-selected control channel and data channel that are of the third
quantity of repetitions, where the data is embedded with a user
equipment identity UEID.
[0058] In a seventh possible implementation manner of the second
aspect, when the user equipment is woken up from a sleep state, the
method further includes:
[0059] performing an operation of downlink synchronization with the
base station, so as to eliminate a time difference between the user
equipment and the base station caused by sleeping of the user
equipment;
[0060] acquiring a time for completing the operation of downlink
synchronization; and
[0061] determining, according to the time for the operation of
downlink synchronization and a preset relationship between a preset
time for the operation of downlink synchronization and channel
selection, a control channel and a data channel that are of a
fourth quantity of repetitions.
[0062] With reference to the foregoing seventh possible
implementation manner of the second aspect, in an eighth possible
implementation manner of the second aspect, the method further
includes: if the fourth quantity of repetitions is different from
the first quantity of repetitions, sending the data and the channel
distribution information to the base station according to the
control channel and the data channel that are of the fourth
quantity of repetitions, so that the base station sends signaling
to the user equipment on the re-selected control channel and data
channel that are of the fourth quantity of repetitions.
[0063] According to a third aspect, an embodiment of the present
invention provides a base station, including:
[0064] a first acquiring module, configured to acquire location
information and channel distribution information that are of
current user equipment, where the location information of the
current user equipment is used to indicate location coordinates of
the current user equipment, and the channel distribution
information is used to indicate information about a channel used by
the current user equipment and a quantity of repetitions of using
the channel;
[0065] a preprocessing module, configured to determine, according
to the location information and the channel distribution
information that are of each user equipment, bandwidth and
quantities of data channels and control channels and quantities of
repetitions corresponding to the data channel and the control
channel;
[0066] an updating module, configured to update bandwidth
allocation information according to the bandwidth and the
quantities of data channels and control channels and the quantities
of repetitions corresponding to the data channel and the control
channel, where the bandwidth allocation information is used to
indicate time-frequency positions of and the quantities of
repetitions of the control channel and the data channel; and
[0067] a first sending module, configured to send broadcast
information to each user equipment by using a broadcast channel,
where the broadcast information includes at least the bandwidth
allocation information, so that each user equipment determines,
according to the bandwidth allocation information, a control
channel and a data channel that are of a corresponding quantity of
repetitions and are required for sending data.
[0068] According to a fourth aspect, an embodiment of the present
invention provides user equipment, including:
[0069] a second receiving module, configured to receive broadcast
information broadcast by a base station, where the broadcast
information includes at least bandwidth allocation information, the
bandwidth allocation information is determined by the base station
by acquiring location information and channel distribution
information that are of each user equipment, where the location
information of each user equipment is used to indicate coordinates
of each user equipment, and the channel distribution information is
used to indicate a channel used by each user equipment and a
quantity of repetitions of sending data on the channel; and then,
by determining, by the base station according to the location
information and the channel distribution information that are of
each user equipment, bandwidth and quantities of data channels and
control channels and quantities of repetitions corresponding to the
data channel and the control channel, and further by updating the
bandwidth allocation information according to the bandwidth and the
quantities of data channels and control channels and the quantities
of repetitions corresponding to the data channel and the control
channel, where the bandwidth allocation information includes preset
bandwidth and quantities of each data channel and each control
channel and preset quantities of repetitions corresponding to each
data channel and each control channel, frequency channel number
positions of uplink and downlink narrowband, and a position fixedly
used as a time-frequency resource position of a random access
channel RACH;
[0070] a processing module, configured to determine, according to
the broadcast information in a broadcast channel and the recorded
channel distribution information of each user equipment, a control
channel and a data channel that are of a corresponding first
quantity of repetitions; and
[0071] a third sending module, configured to send data and the
channel distribution information to the base station according to a
preset rule by using the control channel and the data channel that
are of the first quantity of repetitions.
[0072] According to a fifth aspect, an embodiment of the present
invention provides a base station, including:
[0073] a processor, configured to: determine, according to location
information and channel distribution information that are of each
user equipment, bandwidth and quantities of data channels and
control channels and quantities of repetitions corresponding to the
data channel and the control channel; and update bandwidth
allocation information according to the bandwidth and the
quantities of data channels and control channels and the quantities
of repetitions corresponding to the data channel and the control
channel, where the bandwidth allocation information is used to
indicate time-frequency positions of and the quantities of
repetitions of the control channel and the data channel;
[0074] a sender, configured to send broadcast information to each
user equipment by using a broadcast channel, where the broadcast
information includes at least the bandwidth allocation information,
so that each user equipment determines, according to the bandwidth
allocation information, a control channel and a data channel that
are of a corresponding quantity of repetitions and are required for
sending data; and
[0075] a receiver, configured to acquire the location information
and the channel distribution information that are of each user
equipment, where the location information of each user equipment is
used to indicate coordinates of each user equipment, and the
channel distribution information is used to indicate a channel used
by each user equipment and a quantity of repetitions of sending
data on the channel.
[0076] In a first possible implementation manner of the fifth
aspect, the processor is further configured to: collect statistics
on the location information and the channel distribution
information that are of each user equipment to obtain user
equipment allocation ratios of each data channel and each control
channel that are of a corresponding quantity of repetitions;
configure, according to the user equipment allocation ratios of
each data channel and each control channel that are of the
corresponding quantity of repetitions, occupied time of each data
channel and each control channel that are of the corresponding
quantity of repetitions; and determine, according to the occupied
time of each data channel and each control channel that are of a
different quantity of repetitions, the bandwidth and the quantities
of data channels and control channels and the quantities of
repetitions corresponding to the data channel and the control
channel.
[0077] In a second possible implementation manner of the fifth
aspect, the processor is further configured to: collect statistics
on the location information and the channel distribution
information that are of each user equipment to obtain user
equipment allocation ratios of each data channel and each control
channel that are of a corresponding quantity of repetitions;
configure, according to the user equipment allocation ratios of
each data channel and each control channel that are of the
corresponding quantity of repetitions, occupied frequencies and/or
occupied time frequencies of each data channel and each control
channel that are of the corresponding quantity of repetitions; and
determine, according to the occupied frequencies and/or the
occupied time frequencies of each data channel and each control
channel that are of a different quantity of repetitions, the
bandwidth and the quantities of data channels and control channels
and the quantities of repetitions corresponding to the data channel
and the control channel
[0078] In a third possible implementation manner of the fifth
aspect, the receiver is further configured to:
[0079] receive the channel distribution information and data
embedded with a user equipment identity UEID, where the channel
distribution information and the data are sent by the user
equipment according to a control channel and a data channel that
are of a corresponding quantity of repetitions; or
[0080] receive the channel distribution information and a part of
data embedded with a user equipment identity UEID and a buffer
status report BSR, where the channel distribution information and
the part of data are sent by the user equipment according to a
control channel and a data channel that are of a corresponding
quantity of repetitions.
[0081] With reference to the foregoing third possible
implementation manner of the fifth aspect, in a fourth possible
implementation manner of the fifth aspect,
[0082] the receiver is further configured to parse the channel
distribution information and the part of data embedded with the
user equipment identity UEID and the buffer status report BSR to
obtain a parsed second quantity of repetitions, where the channel
distribution information and the part of data are sent on the
control channel and the data channel that are of the corresponding
quantity of repetitions; and
[0083] the sender is further configured to send scheduling
information that includes the second quantity of repetitions to the
user equipment, so that the user equipment adjusts an original
quantity of repetitions to the second quantity of repetitions
according to the scheduling information to perform data
sending.
[0084] In a fifth possible implementation manner of the fifth
aspect, the receiver is further configured to: if the user
equipment fails to send the data according to the control channel
and the data channel that are of the corresponding quantity of
repetitions, and a quantity of data retransmissions performed by
the user equipment according to a random backoff probability in the
broadcast information is greater than a preset maximum threshold,
acquire data that is sent by the user equipment on a control
channel and a data channel that are of a corresponding third
quantity of repetitions; and
[0085] the processor is further configured to parse a user
equipment identity UEID embedded in the data that is on the control
channel and the data channel that are of the third quantity of
repetitions, so that the base station sends a control command on
the control channel and the data channel that are of the third
quantity of repetitions.
[0086] In a sixth possible implementation manner of the fifth
aspect, the receiver is further configured to: if a quantity of
repetitions required for data changes into a fourth quantity of
repetitions after the user equipment completes an operation of
downlink synchronization, acquire a re-selection status that is
sent by the user equipment and is of a control channel and a data
channel that are of the corresponding fourth quantity of
repetitions, so as to complete sending of signaling to the user
equipment on the control channel and the data channel that are of
the fourth quantity of repetitions, where the operation of downlink
synchronization is used as a synchronization operation of
eliminating a time difference between the user equipment and the
base station caused by sleeping of the user equipment.
[0087] According to a sixth aspect, an embodiment of the present
invention provides user equipment, including:
[0088] a receiver, configured to receive broadcast information
broadcast by a base station, where the broadcast information
includes at least bandwidth allocation information, the bandwidth
allocation information is determined by the base station by
acquiring location information and channel distribution information
that are of each user equipment, where the location information of
each user equipment is used to indicate coordinates of each user
equipment, and the channel distribution information is used to
indicate a channel used by each user equipment and a quantity of
repetitions of sending data on the channel; and then, by
determining, by the base station according to the location
information and the channel distribution information that are of
each user equipment, bandwidth and quantities of data channels and
control channels and quantities of repetitions corresponding to the
data channel and the control channel, and further by updating the
bandwidth allocation information according to the bandwidth and the
quantities of data channels and control channels and the quantities
of repetitions corresponding to the data channel and the control
channel, where the bandwidth allocation information includes preset
bandwidth and quantities of each data channel and each control
channel and preset quantities of repetitions corresponding to each
data channel and each control channel, frequency channel number
positions of uplink and downlink narrowband, and a position fixedly
used as a time-frequency resource position of a random access
channel RACH;
[0089] a processor, configured to determine, according to the
broadcast information in a broadcast channel and a recorded running
status of the user equipment, a control channel and a data channel
that are of a corresponding first quantity of repetitions; and
[0090] a sender, configured to send data and the channel
distribution information to the base station according to a preset
rule by using the control channel and the data channel that are of
the first quantity of repetitions.
[0091] In a first possible implementation manner of the sixth
aspect, the processor is further configured to: if it is determined
that the data can be completely sent within one frame, embed a user
equipment identity UEID in the transmitted data; and
[0092] the sender is further configured to send, to the base
station according to the control channel and the data channel that
are of the first quantity of repetitions, the channel distribution
information and the data embedded with the user equipment identity
UEID.
[0093] With reference to the foregoing first possible
implementation manner of the sixth aspect, in a second possible
implementation manner of the sixth aspect,
[0094] the processor is further configured to: if the data cannot
be completely sent within one frame, separately embed a user
equipment identity UEID and a buffer status report BSR in the
transmitted data;
[0095] the receiver is further configured to acquire scheduling
information of the base station, where the scheduling information
includes an adjusted second quantity of uplink repetitions that is
obtained after the base station parses a part of data embedded with
the user equipment identity UEID and the buffer status report BSR;
and
[0096] the sender is further configured to: send, to the base
station according to the control channel and the data channel that
are of the first quantity of repetitions, the channel distribution
information and the part of the transmitted data embedded with the
user equipment identity UEID and the buffer status report BSR; and
send a remaining part of data to the base station according to the
second quantity of repetitions in the scheduling information.
[0097] In a third possible implementation manner of the sixth
aspect, the user equipment further includes a memory, which is
configured to record the first quantity of repetitions of the
corresponding control channel and data channel that send the data,
so that when re-sending the data, the user equipment determines the
control channel and the data channel that are of the corresponding
first quantity of repetitions.
[0098] In a fourth possible implementation manner of the sixth
aspect, the processor is further configured to: determine whether
the control channel and the data channel that are of the data and
of the first quantity of repetitions are recorded; and if the
control channel and the data channel that are of the data and of
the first quantity of repetitions are not recorded, perform
information combining on the continuously received broadcast
information, and parse the combined broadcast information according
to preset parsing code to determine the control channel and the
data channel that are of the corresponding first quantity of
repetitions; or if the control channel and the data channel that
are of the data and of the first quantity of repetitions are
recorded, send data to the base station by re-using the control
channel and the data channel that are of the first quantity of
repetitions.
[0099] In a fifth possible implementation manner of the sixth
aspect, the processor is further configured to: if sending the data
to the base station according to the preset rule by using the
control channel and the data channel that are of the first quantity
of repetitions fails, perform a preset time of backoff according to
random backoff time in the broadcast information; and monitor the
broadcast information in the broadcast channel; and
[0100] the sender is further configured to re-send the data to the
base station according to a random backoff probability in the
broadcast information.
[0101] With reference to the foregoing fifth possible
implementation manner of the sixth aspect, in a sixth possible
implementation manner of the sixth aspect, the processor is further
configured to: if a quantity of data retransmissions performed
according to the random backoff probability in the broadcast
information is greater than a preset maximum threshold, re-select,
according to the current first quantity of repetitions of the
control channel and the data channel, a control channel and a data
channel that are of a third quantity of repetitions that is greater
than the first quantity of repetitions; and
[0102] the sender is further configured to send the data and the
channel distribution information to the base station according to
the control channel and the data channel that are of the third
quantity of repetitions, so that the base station sends signaling
to the user equipment on the re-selected control channel and data
channel that are of the third quantity of repetitions, where the
data is embedded with a user equipment identity UEID.
[0103] In a seventh possible implementation manner of the sixth
aspect, the processor is further configured to: perform an
operation of downlink synchronization with the base station, so as
to eliminate a time difference between the user equipment and the
base station caused by sleeping of the user equipment; and
determine, according to a time for the operation of downlink
synchronization and a preset relationship between a preset time for
the operation of downlink synchronization and channel selection, a
control channel and a data channel that are of a fourth quantity of
repetitions; and
[0104] the receiver is further configured to acquire the time for
completing the operation of downlink synchronization.
[0105] With reference to the foregoing seventh possible
implementation manner of the sixth aspect, in an eighth possible
implementation manner of the sixth aspect, the sender is further
configured to send the data and the channel distribution
information to the base station according to the control channel
and the data channel that are of the fourth quantity of
repetitions, so that the base station sends signaling to the user
equipment on the re-selected control channel and data channel that
are of the fourth quantity of repetitions.
[0106] According to the broadcast control bandwidth allocation and
data transceiving method and the apparatus provided in the
embodiments of the present invention, location information and
channel distribution information that are of each user equipment
are acquired, bandwidth and quantities of data channels and control
channels and quantities of repetitions corresponding to each data
channel and each control channel are determined, and then bandwidth
allocation information is updated according to the bandwidth and
the quantities of data channels and control channels and the
quantities of repetitions corresponding to each data channel and
each control channel, where the bandwidth allocation information
includes frequency channel number positions of uplink and downlink
narrowband and a position fixedly used as a time-frequency resource
position of a random access channel RACH; then, broadcast
information is sent to the user equipment, where the broadcast
information in a broadcast channel includes at least the bandwidth
allocation information, so that each user equipment determines,
according to the bandwidth allocation information, a control
channel and a data channel that are of a corresponding quantity of
repetitions and are required for sending data. In the solution,
preprocessing is performed on a time-frequency resource of a
channel according to a use status fed back by user equipment, and
effective dynamic division is performed on the time-frequency
resource of the channel, so as to change a conventional common mode
of a channel into a multiplexing mode in which time division or
frequency division or time-frequency division is performed on a
channel according to a real-time use status of the user equipment,
which greatly improves utilization efficiency of the original
channel, and effectively avoids a "starvation" phenomenon. In
addition, broadcast information is sent to each user equipment by
means of broadcast, and then the user equipment performs channel
selection according to the broadcast information, which implements
semi-static adjustment performed by a base station on the user
equipment, and optimizes a process of performing data interaction
between the base station and the user equipment.
BRIEF DESCRIPTION OF DRAWINGS
[0107] To describe the technical solutions in the embodiments of
the present invention more clearly, the following briefly
introduces the accompanying drawings required for describing the
embodiments or the prior art. Apparently, the accompanying drawings
in the following description show merely some embodiments of the
present invention, and a person of ordinary skill in the art may
still derive other drawings from these accompanying drawings
without creative efforts.
[0108] FIG. 1 is a schematic flowchart 1 of a broadcast control
bandwidth allocation and data transceiving method according to an
embodiment of the present invention;
[0109] FIG. 2 is a schematic diagram of division of coverage area
levels of a signal sent by a base station according to the prior
art;
[0110] FIG. 3 is a schematic diagram of a time-frequency resource
of a channel according to an embodiment of the present
invention;
[0111] FIG. 4 is a schematic diagram of division of a
time-frequency resource of a channel by time according to an
embodiment of the present invention;
[0112] FIG. 5 is a schematic diagram of division of a
time-frequency resource of a channel by frequency according to an
embodiment of the present invention;
[0113] FIG. 6 is a specific schematic diagram 1 of performing data
interaction by using a broadcast control bandwidth allocation and
data transceiving method according to an embodiment of the present
invention;
[0114] FIG. 7 is a specific schematic diagram 2 of performing data
interaction by using a broadcast control bandwidth allocation and
data transceiving method according to an embodiment of the present
invention;
[0115] FIG. 8 is a specific schematic diagram 3 of performing data
interaction by using a broadcast control bandwidth allocation and
data transceiving method according to an embodiment of the present
invention;
[0116] FIG. 9 is a schematic flowchart 2 of a broadcast control
bandwidth allocation and data transceiving method according to an
embodiment of the present invention;
[0117] FIG. 10A and FIG. 10B are a schematic flowchart 3 of a
broadcast control bandwidth allocation and data transceiving method
according to an embodiment of the present invention;
[0118] FIG. 11 is a schematic structural diagram 1 of a base
station according to an embodiment of the present invention;
[0119] FIG. 12 is a schematic structural diagram 2 of a base
station according to an embodiment of the present invention;
[0120] FIG. 13 is a schematic structural diagram 3 of a base
station according to an embodiment of the present invention;
[0121] FIG. 14 is a schematic structural diagram 4 of a base
station according to an embodiment of the present invention;
[0122] FIG. 15 is a schematic structural diagram 5 of a base
station according to an embodiment of the present invention;
[0123] FIG. 16 is a schematic structural diagram 6 of a base
station according to an embodiment of the present invention;
[0124] FIG. 17 is a schematic structural diagram 7 of a base
station according to an embodiment of the present invention;
[0125] FIG. 18 is a schematic structural diagram 1 of user
equipment according to an embodiment of the present invention;
[0126] FIG. 19 is a schematic structural diagram 2 of user
equipment according to an embodiment of the present invention;
[0127] FIG. 20 is a schematic structural diagram 3 of user
equipment according to an embodiment of the present invention;
[0128] FIG. 21 is a schematic structural diagram 4 of user
equipment according to an embodiment of the present invention;
[0129] FIG. 22 is a schematic structural diagram 5 of user
equipment according to an embodiment of the present invention;
[0130] FIG. 23 is a schematic structural diagram 6 of user
equipment according to an embodiment of the present invention;
[0131] FIG. 24 is a schematic structural diagram 7 of user
equipment according to an embodiment of the present invention;
[0132] FIG. 25 is a schematic structural diagram 8 of user
equipment according to an embodiment of the present invention;
[0133] FIG. 26 is a schematic structural diagram 8 of a base
station according to an embodiment of the present invention;
[0134] FIG. 27 is a schematic structural diagram 9 of user
equipment according to an embodiment of the present invention;
and
[0135] FIG. 28 is a schematic structural diagram 10 of user
equipment according to an embodiment of the present invention.
DESCRIPTION OF EMBODIMENTS
[0136] The following clearly and describes the technical solutions
in the embodiments of the present invention with reference to the
accompanying drawings in the embodiments of the present invention.
Apparently, the described embodiments are merely some but not all
of the embodiments of the present invention. All other embodiments
obtained by a person of ordinary skill in the art based on the
embodiments of the present invention without creative efforts shall
fall within the protection scope of the present invention.
[0137] The embodiments of the present invention are applied in a
radio communications system, where the radio communications system
includes at least user equipment and a base station.
[0138] The user equipment may be a wireless terminal or a wired
terminal. The wireless terminal may refer to a device that provides
a user with voice and/or data connectivity, a handheld device with
a radio connection function, or another processing device connected
to a radio modem. The wireless terminal may communicate with one or
more core networks by using a radio access network (such as RAN,
Radio Access Network). The wireless terminal may be a mobile
terminal, such as a mobile phone (also referred to as a "cellular"
phone), and a computer with a mobile terminal.
[0139] The base station (for example, an access point) may refer to
a device in communication with a wireless terminal via one or more
sectors at an air interface in an access network. The base station
may be used to mutually convert a received over-the-air frame and
an IP packet and serve as a router between the wireless terminal
and a rest portion of the access network, where the rest portion of
the access network may include an Internet Protocol (IP) network.
The base station may also coordinate attribute management of the
air interface. For example, the base station may be a base
transceiver station (BTS, Base Transceiver Station) in GSM or CDMA,
may be a NodeB (NodeB) in WCDMA, or may be an evolved NodeB (NodeB,
eNB, or e-NodeB, evolutional Node B) in LTE, which is not limited
in the present invention.
[0140] According to a broadcast control bandwidth allocation and
data transceiving method provided in the embodiments of the present
invention, preprocessing is performed on a time-frequency resource
of a channel, and effective dynamic division is performed on the
time-frequency resource of the channel; then, a base station
writes, into bandwidth allocation information in broadcast
information, preset bandwidth and quantities of each data channel
and each control channel and preset quantities of repetitions
corresponding to each data channel and each control channel After
receiving the broadcast information, user equipment accordingly
obtains a scheme for performing effective dynamic division on the
time-frequency resource of the channel, that is, the bandwidth and
the quantities of each data channel and each control channel and
the quantities of repetitions corresponding to each data channel
and each control channel; the user equipment parses parameters in
the broadcast information, so as to complete a corresponding
channel selection operation, and perform data interaction with the
base station according to a selected channel and a corresponding
quantity of repetitions.
Embodiment 1
[0141] An embodiment of the present invention provides a broadcast
control bandwidth allocation and data transceiving method. As shown
in FIG. 1, the method includes the following steps:
[0142] 101. A base station acquires location information and
channel distribution information that are of current user
equipment.
[0143] The location information of the user equipment is used to
indicate location coordinates of the current user equipment, and
the channel distribution information is used to indicate a channel
used by each user equipment and a quantity of repetitions of
sending data on the channel. For example, channel distribution
information of user equipment A includes that a channel used by the
user equipment A is a channel X, and a quantity of repetitions used
when data interaction is performed between the user equipment A and
the base station on the channel X is 64X (that is, 64
retransmissions).
[0144] Specifically, the location information of the user equipment
includes information about a coordinate position and a coverage
level that are of the user equipment in a coverage area of the base
station. Exemplarily, when data interaction is performed between
the base station and the user equipment, areas covered by the base
station are divided into different levels according to a quantity
of repetitions required for sending data. As shown in FIG. 2, an
area A is a common coverage area in which data interaction between
the base station and the user equipment can be completed without
performing spread spectrum (referred to as 1X); an area B/C is an
extended coverage area in which data interaction between the base
station and the user equipment needs to be completed in a manner of
spread spectrum, that is, retransmissions (for example, 8-fold
repetitions are referred to as 8X, 64-fold repetitions are referred
to as 64X, or repetitions of another multiple appear). When user
equipments are located in areas of different coverage levels, and a
terminal that needs a larger quantity of repetitions and a terminal
that needs a smaller quantity of repetitions contend for sending
data, it is difficult for the former to obtain a resource by means
of contention.
[0145] 102. The base station determines, according to the location
information and the channel distribution information that are of
each user equipment, bandwidth and quantities of data channels and
control channels and quantities of repetitions corresponding to the
data channel and the control channel
[0146] In the broadcast control bandwidth allocation and data
transceiving method provided in this embodiment of the present
invention, preprocessing is performed on a time-frequency resource
of a channel, and effective dynamic division is performed on the
time-frequency resource of the channel, so as to change a
conventional common mode of a channel into a multiplexing mode in
which time division or frequency division or time-frequency
division is performed on the channel according to a real-time use
status of the user equipment, which greatly improves utilization
efficiency of the original channel
[0147] As shown in FIG. 3, the time-frequency resource of the
channel includes: one broadcast channel, data channels of different
multiples of repetitions, and several corresponding control
channels. The base station performs preprocessing on the use status
fed back by the user equipment, so as to determine bandwidth and
quantities of each data channel and each control channel and
quantities of repetitions corresponding to each data channel and
each control channel that are used when data interaction is
performed between the base station and the user equipment.
[0148] It should be noted that a specific method for preprocessing
the time-frequency resource of the channel by the base station is
described in detail in Embodiment 2, and therefore, details are not
provided herein.
[0149] 103. The base station updates bandwidth allocation
information according to the bandwidth and the quantities of data
channels and control channels and the quantities of repetitions
corresponding to the data channel and the control channel
[0150] The bandwidth allocation information includes bandwidth and
quantities of each data channel and each control channel,
quantities of repetitions corresponding to each data channel and
each control channel, frequency channel number positions of uplink
and downlink narrowband, and a position fixedly used as a
time-frequency resource position of a random access channel
RACH.
[0151] Further, the bandwidth and the quantities of each data
channel and each control channel and the quantities of repetitions
corresponding to each data channel and each control channel are
obtained by the base station by performing preprocessing on the
time-frequency resource of the channel according to the use status
fed back by the user equipment. The frequency channel number
positions of the uplink and downlink narrowband are used to
indicate frequency band resources occupied by the uplink and
downlink narrowband. Specifically, a method of stipulating a
protocol may be used: First, a table is stipulated by using the
protocol, and then only a specific configuration that needs to be
carried in the bandwidth allocation information is written into the
table for index query, or information source display may be
directly used to specify a central frequency channel number
position of each channel. The RACH (Random Access Channel, random
access channel) is an uplink transmission channel; data receiving
is always performed on the RACH within an entire cell, and open
loop power control is used.
[0152] Specifically, because of a change of a running status of the
user equipment, the base station performs preprocessing on the
time-frequency resource of the channel according to the use status
fed back by the user equipment to obtain the bandwidth and the
quantities of each data channel and each control channel, and
re-writes this information into the bandwidth allocation
information, which overwrites the original bandwidth allocation
information. For example, after preprocessing is performed on the
time-frequency resource of the channel according to the use status
fed back by the user equipment, the base station determines that a
current time-frequency resource allocation status is as follows:
One 1X control channel and one 1X data channel, eight 8X control
channels and eight 8X data channels, and sixteen 16X control
channels and sixteen 16X data channels. Then, the base station
writes this allocation information into the bandwidth allocation
information, which overwrites the original bandwidth allocation
information.
[0153] 104. The base station sends broadcast information to each
user equipment by using a broadcast channel, where the broadcast
information includes at least the bandwidth allocation information,
so that each user equipment determines, according to the bandwidth
allocation information, a control channel and a data channel that
are of a corresponding quantity of repetitions and are required for
sending data.
[0154] Specifically, the base station sends the broadcast
information to the user equipment by using the broadcast channel,
where the broadcast information in the broadcast channel includes
at least the bandwidth allocation information, so that the user
equipment determines, according to the broadcast information, a
control channel and a data channel that are of a first quantity of
repetitions and are required for transferring data.
[0155] Further, the acquiring data and the channel distribution
information that are sent by the user equipment according to the
control channel and the data channel that are of the first quantity
of repetitions includes the following two cases:
[0156] acquiring the channel distribution information and data
embedded with a user equipment identity UEID, where the channel
distribution information and the data are sent by the user
equipment according to the control channel and the data channel
that are of the first quantity of repetitions, or acquiring the
channel distribution information and a part of data embedded with a
user equipment identity UEID and a buffer status report BSR, where
the channel distribution information and the part of data are sent
by the user equipment according to the control channel and the data
channel that are of the first quantity of repetitions.
[0157] Specifically, after the base station sends the broadcast
information to the user equipment, the user equipment determines,
according to the broadcast information in the broadcast channel and
a recorded running status of the user equipment, the control
channel and the data channel that are of the corresponding first
quantity of repetitions, and then sends data and the channel
distribution information to the base station. When sending the data
and the channel distribution information, the user equipment
determines whether the data can be completely sent within one
frame. If the data can be completely sent within one frame, that
is, sending of a small packet of data, as shown in FIG. 6, the user
equipment embeds a user equipment identity UEID in the transmitted
data and sends the transmitted data to the base station, so that
the base station acquires the channel distribution information and
the data embedded with the user equipment identity UEID, where the
channel distribution information and the data are sent by the user
equipment according to the control channel and the data channel
that are of the first quantity of repetitions.
[0158] If the data cannot be sent within one frame, that is,
sending of a large packet of data, as shown in FIG. 6, the user
equipment separately embeds a user equipment identity UEID and a
buffer status report BSR in the transmitted data, and then sends,
to the base station according to the control channel and the data
channel that are of the first quantity of repetitions, the channel
distribution information and a part of the transmitted data
embedded with the user equipment identity UEID and the buffer
status report BSR. In this case, the base station adjusts the first
quantity of repetitions to a corresponding second quantity of
repetitions according to the channel distribution information and
the part of data embedded with the user equipment identity UEID and
the buffer status report BSR, where the channel distribution
information and the part of data are sent on the control channel
and the data channel that are of the first quantities of
repetitions; then, the base station sends scheduling information
that includes the second quantity of repetitions to the user
equipment, so that the user equipment adjusts an original quantity
of repetitions to the second quantity of repetitions according to
the scheduling information to perform data sending.
[0159] Further, as shown in FIG. 7, after the user equipment sends
the data and the channel distribution information according to the
control channel and the data channel that are of the first quantity
of repetitions, if the user equipment fails to send the data
according to the control channel and the data channel that are of
the first quantity of repetitions, and a quantity of data
retransmissions performed by the user equipment according to a
random backoff probability in the broadcast information is greater
than a preset maximum threshold, the base station acquires data
that is on a control channel and a data channel that are of a third
quantity of repetitions, then parses a user equipment identity UEID
embedded in the data that is on the control channel and the data
channel that are of the third quantity of repetitions, and finally
acquires, according to the user equipment identity UEID,
information about the control channel and the data channel that are
of the third quantity of repetitions, so that the base station
sends a control command on the control channel and the data channel
that are of the third quantity of repetitions.
[0160] Further, as shown in FIG. 8, if a quantity of repetitions
required for data changes into a fourth quantity of repetitions
after the user equipment completes an operation of downlink
synchronization, and the fourth quantity of repetitions is
different from the first quantity of repetitions, the base station
acquires a re-selection status that is sent by the user equipment
and is of a control channel and a data channel that are of the
corresponding fourth quantity of repetitions, and then completes
sending of signaling to the user equipment on the control channel
and the data channel that are of the fourth quantity of
repetitions, where the operation of downlink synchronization is
used as a synchronization operation of eliminating a time
difference between the user equipment and the base station caused
by sleeping of the user equipment.
[0161] An embodiment of the present invention provides a broadcast
control bandwidth allocation and data transceiving method. As shown
in FIG. 9, the method includes the following steps:
[0162] 201. User equipment receives broadcast information broadcast
by a base station, where the broadcast information includes at
least bandwidth allocation information.
[0163] The bandwidth allocation information may include at least
one or more types of the following information: preset quantities
of data channels and control channels, preset bandwidth of each
data channel and each control channel, preset quantities of
repetitions corresponding to each data channel and each control
channel, frequency channel number positions of uplink and downlink
narrowband, and a position fixedly used as a time-frequency
resource position of a random access channel RACH.
[0164] Further, the bandwidth and the quantities of data channels
and control channels and the quantities of repetitions
corresponding to each data channel and each control channel are
obtained by the base station by performing preprocessing on a
time-frequency resource of a channel according to a use status fed
back by the user equipment. The frequency channel number positions
of the uplink and downlink narrowband are used to indicate
frequency band resources occupied by the uplink and downlink
narrowband. The RACH (Random Access Channel, random access channel)
is an uplink transmission channel, and is used to indicate a
position of a resource that is used for competitive access; data
receiving is always performed on the RACH within an entire cell,
the RACH features a collision risk, and open loop power control is
used.
[0165] Optionally, the broadcast information may further include
one or more types of the following information: access control
information, a cell ID, public land mobile network PLMN
information, a system frame number, a system message change
indication, random backoff time, and a random backoff
probability.
[0166] The access control information is used to indicate a type of
user equipment that is allowed for access or allowed to send data.
The cell ID is physical identification information of a cell, and
is used to distinguish different cells. The PLMN information is
used to distinguish different operator networks, so as to perform
access control. The system frame number is used to indicate a
current running time point of a base station. The system message
change indication is used to indicate whether a system message of
user equipment changes; for example, the system message change
indication may be implemented by using an indication similar to a
Valuetag indication in a current LTE (Long Term Evolution, Long
Term Evolution) system. The random backoff time is used to indicate
sleep duration of user equipment after the user equipment fails to
send data. The random backoff probability is used to indicate
whether to perform a backoff operation, and a probability of
performing the backoff operation.
[0167] 202. The user equipment determines, according to the
broadcast information in a broadcast channel and a recorded running
status of the user equipment, a control channel and a data channel
that are of a corresponding first quantity of repetitions.
[0168] During a process of data interaction that is between the
base station and the user equipment and is before current channel
selection, after the user equipment determines, according to the
broadcast information in the broadcast channel and the recorded
running status of the user equipment, the control channel and the
data channel that are of the corresponding first quantity of
repetitions, the user equipment records the first quantity of
repetitions of the corresponding control channel and data channel
that send data, and stores the first quantity of repetitions as
historical data, so that when re-sending the data, the user
equipment determines the control channel and the data channel that
are of the corresponding first quantity of repetitions.
[0169] Specifically, after receiving the broadcast information
broadcast by the base station, the user equipment parses the
broadcast information. First, the user equipment determines whether
the control channel and the data channel that are of the data and
of the first quantity of repetitions are recorded. If the control
channel and the data channel that are of the first quantity of
repetitions are recorded, the user equipment sends data to the base
station by re-using the control channel and the data channel that
are of the first quantity of repetitions. If the control channel
and the data channel that are of the data and of the first quantity
of repetitions are not recorded, the user equipment performs
information combining on the continuously received broadcast
information, and then parses the combined broadcast information
according to preset parsing code to determine the control channel
and the data channel that are of the corresponding first quantity
of repetitions.
[0170] In addition, if the user equipment is woken up from a sleep
state, the user equipment performs an operation of downlink
synchronization to determine a control channel and a data channel
that are of a corresponding quantity of repetitions and is in a
current situation.
[0171] Specifically, the user equipment performs the operation of
downlink synchronization with the base station to eliminate a time
difference between the user equipment and the base station caused
by sleeping of the user equipment; then, the user equipment
acquires a time for completing the operation of downlink
synchronization; finally, the user equipment determines, according
to the time for the operation of downlink synchronization and a
preset relationship between a preset time for the operation of
downlink synchronization and channel selection, a control channel
and a data channel that are of a fourth quantity of repetitions. If
the fourth quantity of repetitions is different from the first
quantity of repetitions, the user equipment sends the data and the
channel distribution information to the base station by using the
control channel and the data channel that are of the fourth
quantity of repetitions, so that the base station sends signaling
to the user equipment on the re-selected control channel and data
channel that are of the fourth quantity of repetitions.
[0172] For example, the user equipment is woken up thirty minutes
later after entering the sleep state; in this case, the user
equipment needs to determine a control channel and a data channel
that are of a corresponding quantity of repetitions and are
required in a current running status of the user equipment, so as
to complete data interaction between the base station and the user
equipment. First, the user equipment performs the operation of
downlink synchronization with the base station to eliminate a
thirty-minute time difference between the user equipment and the
base station caused by sleeping of the user equipment; then, the
user equipment acquires the time for completing the operation of
downlink synchronization, for example, it takes thirty minutes to
complete the operation of downlink synchronization. A corresponding
relationship between the time for completing the operation of
downlink synchronization and a control channel and a data channel
that are of a corresponding quantity of repetitions is preset in a
system of the user equipment, and the user equipment can determine,
by only querying the corresponding relationship, the control
channel and the data channel that are of the fourth quantity of
repetitions and are currently required for completing data
interaction between the base station and the user equipment. The
user equipment determines whether the fourth quantity of
repetitions is equal to the first quantity of repetitions, and if
the fourth quantity of repetitions is different from the first
quantity of repetitions, the user equipment sends the data and the
channel distribution information to the base station according to
the control channel and the data channel that are of the fourth
quantity of repetitions.
[0173] 203. The user equipment sends data and channel distribution
information to the base station according to a preset rule by using
the control channel and the data channel that are of the first
quantity of repetitions.
[0174] Specifically, after the user equipment determines, according
to the broadcast information in the broadcast channel and the
recorded running status of the user equipment, the control channel
and the data channel that are of the first quantity of repetitions,
the user equipment sends the data and the channel distribution
information to the base station according to the control channel
and the data channel that are of the first quantity of repetitions.
First, the user equipment determines whether the data can be
completely sent within one frame. If the data can be completely
sent within one frame, the user equipment embeds a user equipment
identity UEID in the transmitted data, and then sends, to the base
station according to the control channel and the data channel that
are of the first quantity of repetitions, the channel distribution
information and the data embedded with the user equipment identity
UEID. If the data cannot be completely sent within one frame, the
user equipment separately embeds a user equipment identity UEID and
a buffer status report BSR in the transmitted data, and in this
case, the user equipment sends, to the base station according to
the control channel and the data channel that are of the first
quantity of repetitions, the channel distribution information and a
part of the transmitted data embedded with the user equipment
identity UEID and the buffer status report BSR. After receiving the
part of data embedded with the user equipment identity UEID and the
buffer status report BSR, the base station parses the part of data,
adjusts a second quantity of repetitions that is used when data
interaction is performed between the base station and the user
equipment, and sends scheduling information of the adjusted second
quantity of repetitions to the user equipment. After acquiring the
scheduling information of the base station, the user equipment
sends a remaining part of data to the base station according to the
second quantity of repetitions in the scheduling information.
[0175] According to the broadcast control bandwidth allocation and
data transceiving method provided in this embodiment of the present
invention, location information and channel distribution
information that are of each user equipment are acquired, bandwidth
and quantities of data channels and control channels and quantities
of repetitions corresponding to each data channel and each control
channel are determined, and then bandwidth allocation information
is updated according to the bandwidth and the quantities of data
channels and control channels and the quantities of repetitions
corresponding to each data channel and each control channel, where
the bandwidth allocation information further includes frequency
channel number positions of uplink and downlink narrowband and a
position fixedly used as a time-frequency resource position of a
random access channel RACH; then, broadcast information is sent to
the user equipment, where the broadcast information in a broadcast
channel includes at least the bandwidth allocation information, so
that each user equipment determines, according to the bandwidth
allocation information, a control channel and a data channel that
are of a corresponding quantity of repetitions and are required for
sending data. In the solution, preprocessing is performed on a
time-frequency resource of a channel, and effective dynamic
division is performed on the time-frequency resource of the
channel; then, a base station writes, into bandwidth allocation
information in broadcast information, preset bandwidth and
quantities of each data channel and each control channel and preset
quantities of repetitions corresponding to each data channel and
each control channel. After receiving the broadcast information,
user equipment accordingly obtains a scheme for performing
effective dynamic division on the time-frequency resource of the
channel, that is, the bandwidth and the quantities of each data
channel and each control channel and the quantities of repetitions
corresponding to each data channel and each control channel; the
user equipment parses parameters in the broadcast information, so
as to complete a corresponding channel selection operation, which
implements semi-static adjustment performed by the base station on
the user equipment, and optimizes a process of performing data
interaction between the base station and the user equipment.
Embodiment 2
[0176] An embodiment of the present invention provides a broadcast
control bandwidth allocation and data transceiving method. As shown
in FIG. 10A and FIG. 10B, the method includes the following
steps:
[0177] 301. A base station collects statistics on location
information and channel distribution information that are of each
user equipment to obtain user equipment allocation ratios of each
data channel and each control channel that are of a corresponding
quantity of repetitions.
[0178] When data interaction is performed between the base station
and the user equipment, areas covered by the base station are
divided into different levels according to a quantity of
repetitions required for sending data. As shown in FIG. 2, an area
A is a common coverage area in which data interaction between the
base station and the user equipment can be completed without
performing spread spectrum (referred to as 1X); an area B/C is an
extended coverage area in which data interaction between the base
station and the user equipment needs to be completed in a manner of
spread spectrum, that is, retransmissions (for example, 8-fold
repetitions are referred to as 8X, 64-fold repetitions are referred
to as 64X, or repetitions of another multiple appear). When user
equipments are located in areas of different coverage levels, and a
terminal that needs a larger quantity of repetitions and a terminal
that needs a smaller quantity of repetitions contend for sending
data, it is difficult for the former to obtain a resource by means
of contention.
[0179] Specifically, the base station needs to collect statistics
on selection statuses of a data channel and a control channel of
each user equipment to obtain the user equipment allocation ratios
of each data channel and each control channel that are of a
different quantity of repetitions.
[0180] Exemplarily, because each time the base station and the user
equipment perform data interaction, the user equipment sends, to
the base station, channel distribution information of that is used
to send data, the base station performs statistic collection
according to the information sent by the user equipment to obtain
the user equipment allocation ratios of each data channel and each
control channel that are of the different quantity of repetitions.
For example, after performing statistics collection, the base
station learns that there are 10 user equipments that use a 1X
channel, 20 user equipments that use an 8X channel, and 20 user
equipments that use a 64X channel; then, the user equipment
allocation ratios of data channels and control channels that are of
the different quantity of repetitions are that the 1X channels
occupy 20%, the 8X channels occupy 40%, and the 64X channels occupy
40%.
[0181] 302. The base station configures, according to the user
equipment allocation ratios of each data channel and each control
channel that are of the corresponding quantity of repetitions,
occupied time of each data channel and each control channel that
are of the corresponding quantity of repetitions.
[0182] Specifically, as shown in FIG. 4, the base station
configures, according to the user equipment allocation ratios of
each data channel and each control channel that are of the
different quantity of repetitions, occupied time of each data
channel and each control channel that are of the different quantity
of repetitions. For example, an occupied time allocated to a 1X
channel is T1, an occupied time allocated to an 8X channel is T2,
and an occupied time allocated to a 64X channel is T3, where values
of T1, T2, and T3 are obtained according to the user equipment
allocation ratios of each data channel and each control channel
that are of the different quantity of repetitions.
[0183] Exemplarily, after performing statistics collection, the
base station learns that there are 10 user equipments that use a 1X
channel, 20 user equipments that use an 8X channel, and 20 user
equipments that use a 64X channel; then, the user equipment
allocation ratios of data channels and control channels that are of
the different quantity of repetitions are that the 1X channels
occupy 20%, the 8X channels occupy 40%, and the 64X channels occupy
40%. The base station configures, according to the allocation
ratios, occupied time of each data channel and each control channel
that are of the different quantity of repetitions, where an
occupied time allocated to the 1X channel is 4.8 hours, an occupied
time allocated to the 8X channel is 9.6 hours, and an occupied time
allocated to the 64X channel is 9.6 hours.
[0184] In addition, as shown in FIG. 5, the base station may
further divide a time-frequency resource of a channel according to
a value range of a frequency, that is, the base station configures,
according to the user equipment allocation ratios of each data
channel and each control channel that are of the different quantity
of repetitions, occupied frequencies of each data channel and each
control channel that are of the different quantity of repetitions.
For example, an occupied frequency allocated to the 1X channel is
X, an occupied frequency allocated to the 8X channel is Y, and an
occupied frequency allocated to the 64X channel is Z, where values
of X, Y, and Z are obtained according to the user equipment
allocation ratios of each data channel and each control channel
that are of the different quantity of repetitions.
[0185] Further, the base station may further divide the
time-frequency resource of the channel according to a method of a
combination of a time and a frequency, that is, the base station
configures, according to the user equipment allocation ratios of
each data channel and each control channel that are of the
different quantity of repetitions, occupied time frequencies of
each data channel and each control channel that are of the
different quantity of repetitions.
[0186] 303. The base station determines, according to the occupied
time of each data channel and each control channel that are of a
different quantity of repetitions, bandwidth and quantities of data
channels and control channels and quantities of repetitions
corresponding to the data channel and the control channel
[0187] Specifically, after configuring, according to the user
equipment allocation ratios of each data channel and each control
channel that are of the different quantity of repetitions, the
occupied time of each data channel and each control channel that
are of the different quantity of repetitions, the base station
determines bandwidth and quantities of each data channel and each
control channel and quantities of repetitions corresponding to each
data channel and each control channel
[0188] Exemplarily, after performing statistics collection, the
user equipment learns that there are 10 user equipments that use a
1X channel, 20 user equipments that use an 8X channel, and 20 user
equipments that use a 64X channel; then, the user equipment
allocation ratios of data channels and control channels that are of
the different quantity of repetitions are that the 1X channels
occupy 20%, the 8X channels occupy 40%, and the 64X channels occupy
40%. The base station configures, according to the allocation
ratios, the occupied time of each data channel and each control
channel that are of the different quantity of repetitions, where an
occupied time allocated to the 1X channel is 4.8 hours, an occupied
time allocated to the 8X channel is 9.6 hours, and an occupied time
allocated to the 64X channel is 9.6 hours. Then, the base station
determines the bandwidth and the quantities of each data channel
and each control channel and the quantities of repetitions
corresponding to each data channel and each control channel
[0189] It should be noted that examples in steps 301 to 303 are
merely exemplary, and a calculating method similar to the examples
shall also fall within the protection scope of the solution.
[0190] 304. The base station updates bandwidth allocation
information according to the bandwidth and the quantities of data
channels and control channels and the quantities of repetitions
corresponding to the data channel and the control channel
[0191] The bandwidth allocation information further includes
frequency channel number positions of uplink and downlink
narrowband and a position fixedly used as a time-frequency resource
position of a random access channel RACH.
[0192] The bandwidth and the quantities of each data channel and
each control channel and the quantities of repetitions
corresponding to each data channel and each control channel are
obtained by the base station by performing preprocessing on a
time-frequency resource of a channel according to a use status fed
back by the user equipment. The frequency channel number positions
of the uplink and downlink narrowband are used to indicate
frequency band resources occupied by the uplink and downlink
narrowband. The RACH is an uplink transmission channel, and is used
to indicate a position of a resource that is used for competitive
access; data receiving is always performed on the RACH within an
entire cell, and open loop power control is used.
[0193] Specifically, because of a change of a running status of the
user equipment, the base station performs preprocessing on the
time-frequency resource of the channel according to the use status
fed back by the user equipment to obtain the bandwidth and the
quantities of each data channel and each control channel, and
re-writes this information into the bandwidth allocation
information, which overwrites the original bandwidth allocation
information. For example, after preprocessing is performed on the
time-frequency resource of the channel according to the use status
fed back by the user equipment, the base station determines that a
current time-frequency resource allocation status is as follows:
One 1X control channel and one 1X data channel, eight 8X control
channels and eight 8X data channels, and sixteen 16X control
channels and sixteen 16X data channels. Then, the base station
writes this allocation information into the bandwidth allocation
information, which overwrites the original bandwidth allocation
information.
[0194] 305. The base station sends broadcast information to each
user equipment, where the broadcast information in a broadcast
channel includes at least the bandwidth allocation information.
[0195] Specifically, after the base station updates the bandwidth
allocation information, the base station continuously broadcasts
the broadcast information to the user equipment by means of
broadcast, so that the user equipment receives the broadcast
information, and determines, according to the broadcast information
in the broadcast channel and a recorded running status of the user
equipment, a corresponding data channel and control channel that
are of first quantities of repetitions.
[0196] Further, in addition to the bandwidth and the quantities of
each data channel and each control channel that are obtained by the
base station by performing preprocessing on the time-frequency
resource of the channel according to the use status fed back by the
user equipment, the broadcast information further includes: access
control information, a cell ID, public land mobile network PLMN
information, a system frame number, a system message change
indication, random backoff time, and a random backoff
probability.
[0197] The access control information is used to indicate a type of
user equipment that is allowed for access or allowed to send data.
The cell ID is physical identification information of a cell, and
is used to distinguish different cells. The PLMN information is
used to distinguish different operator networks, so as to perform
access control. The system frame number is used to indicate a
current running time point of a base station. The system message
change indication is used to indicate whether a system message of
user equipment changes; for example, the system message change
indication may be implemented by using an indication similar to a
Valuetag indication in a current LTE (Long Term Evolution, Long
Term Evolution) system. The random backoff time is used to indicate
sleep duration of user equipment after the user equipment fails to
send data. The random backoff probability is used to indicate
whether to perform a backoff operation, and a probability of
performing the backoff operation.
[0198] 306. The user equipment receives the broadcast information
broadcast by the base station.
[0199] Specifically, after the base station sends the broadcast
information to the user equipment, where the broadcast information
in the broadcast channel includes at least the bandwidth allocation
information, the user equipment receives the broadcast information
broadcast by the base station.
[0200] The broadcast information is continuously sent by the base
station. When receiving the broadcast information, the user
equipment each time receives broadcast information that is at a
fixed time, then combines and parses the broadcast information
received at each time, and finally determines the control channel
and the data channel that are of the corresponding first quantities
of repetitions, so that the base station and the user equipment
complete data interaction.
[0201] 307. The user equipment determines, according to the
broadcast information in the broadcast channel and a recorded
running status of the user equipment, a control channel and a data
channel that are of a corresponding first quantity of
repetitions.
[0202] The recorded running status of the user equipment is that
during a process of data interaction that is between the base
station and the user equipment and is before current channel
selection, after the user equipment determines, according to the
broadcast information in the broadcast channel and the recorded
running status of the user equipment, the control channel and the
data channel that are of the corresponding first quantity of
repetitions, the user equipment records the first quantity of
repetitions of the corresponding control channel and data channel
that send the data, and stores the first quantity of repetitions as
historical data, so that when re-sending the data, the user
equipment determines the control channel and the data channel that
are of the corresponding first quantity of repetitions.
[0203] Specifically, after receiving the broadcast information
broadcast by the base station, the user equipment parses the
broadcast information. First, the user equipment determines whether
the control channel and the data channel that are of the data and
of the first quantity of repetitions are recorded. If the control
channel and the data channel that are of the data and of the first
quantity of repetitions are recorded, the user equipment invokes
the historical data to send data to the base station by re-using
the control channel and the data channel that are of the first
quantity of repetitions. If the control channel and the data
channel that are of the data and of the first quantity of
repetitions are not recorded, the user equipment performs
information combining on the continuously received broadcast
information, and then parses the combined broadcast information
according to preset parsing code to determine the control channel
and the data channel that are of the corresponding first quantity
of repetitions.
[0204] 308. The user equipment sends data and the channel
distribution information to the base station according to a preset
rule by using the control channel and the data channel that are of
the first quantity of repetitions.
[0205] Specifically, after the user equipment determines, according
to the broadcast information in the broadcast channel and the
recorded running status of the user equipment, the control channel
and the data channel that are of the first quantity of repetitions,
the user equipment sends the data and the channel distribution
information to the base station according to the control channel
and the data channel that are of the first quantity of repetitions.
First, the user equipment determines that the data can be
completely sent within one frame. If the data can be completely
sent within one frame, the user equipment embeds a user equipment
identity UEID in the transmitted data, and then sends, to the base
station according to the control channel and the data channel that
are of the first quantity of repetitions, the channel distribution
information and the data embedded with the user equipment identity
UEID. If the data cannot be completely sent within one frame, the
user equipment separately embeds a user equipment identity UEID and
a buffer status report BSR in the transmitted data, and in this
case, the user equipment sends, to the base station according to
the control channel and the data channel that are of the first
quantity of repetitions, the channel distribution information and a
part of the transmitted data embedded with the user equipment
identity UEID and the buffer status report BSR. After receiving the
part of data embedded with the user equipment identity UEID and the
buffer status report BSR, the base station parses the part of data,
adjusts a second quantity of repetitions that is used when data
interaction is performed between the base station and the user
equipment, and sends scheduling information of the adjusted second
quantity of repetitions to the user equipment. After acquiring the
scheduling information of the base station, the user equipment
sends a remaining part of data to the base station according to the
second quantity of repetitions in the scheduling information.
[0206] Further, after the user equipment sends the data and the
channel distribution information to the base station according to
the preset rule by using the control channel and the data channel
that are of the first quantities of repetitions, if sending the
data to the base station according to the preset rule by using the
control channel and the data channel that are of the first
quantities of repetitions fails, the user equipment performs a
preset time of backoff according to random backoff time in the
broadcast information, then monitors the broadcast information in
the broadcast channel, and finally re-sends the data to the base
station according to a random backoff probability in the broadcast
information.
[0207] 309. The user equipment records, as historical data, the
first quantity of repetitions of the corresponding control channel
and data channel that send the data.
[0208] Specifically, after determining, according to the broadcast
information in the broadcast channel and the recorded running
status of the user equipment, the control channel and the data
channel that are of the corresponding first quantities of
repetitions, the user equipment records, as historical data, the
first quantities of repetitions of the corresponding control
channel and data channel that send the data, so that when
re-sending the data, the user equipment invokes the historical data
to determine the control channel and the data channel that are of
the corresponding first quantities of repetitions.
[0209] Exemplarily, a particular user equipment determines,
according to the broadcast information in the broadcast channel and
a recorded running status of the user equipment, that the control
channel and the data channel that are of the corresponding first
quantities of repetitions are an 8X control channel and a 64X data
channel; in this case, the user equipment stores, as historical
data, the current control channel and data channel that are of the
first quantities of repetitions, that is, the 8X control channel
and the 64X data channel. When re-sending the data, the user
equipment directly invokes the historical data to determine the
control channel and the data channel that are of the corresponding
first quantities of repetitions to perform data interaction between
the base station and the user equipment.
[0210] 310. If sending the data to the base station according to
the preset rule by using the control channel and the data channel
that are of the first quantity of repetitions fails, the user
equipment performs a channel re-selection operation.
[0211] Specifically, after the user equipment sends the data and
the channel distribution information to the base station according
to the preset rule by using the control channel and the data
channel that are of the first quantities of repetitions, if sending
the data to the base station according to the preset rule by using
the control channel and the data channel that are of the first
quantities of repetitions fails, the user equipment performs a
preset time of backoff according to random backoff time in the
broadcast information, then monitors the broadcast information in
the broadcast channel, and finally re-sends the data to the base
station according to a random backoff probability in the broadcast
information.
[0212] In this case, if a quantity of data retransmissions
performed by the user equipment according to the random backoff
probability in the broadcast information is greater than a preset
maximum threshold, the user equipment re-selects, according to the
current first quantity of repetitions of the control channel and
the data channel, a control channel and a data channel that are of
a third quantity of repetitions that is greater than the first
quantity of repetitions; then, the user equipment sends the data
and the channel distribution information to the base station
according to the control channel and the data channel that are of
the third quantity of repetitions, so that the base station sends
signaling to the user equipment on the re-selected control channel
and data channel that are of the third quantity of repetitions,
where the data is embedded with a user equipment identity UEID.
[0213] 311. The base station acquires data and channel distribution
information that are sent by the user equipment according to a
control channel and a data channel that are of a third quantity of
repetitions.
[0214] Specifically, the base station acquires the channel
distribution information and the data embedded with the user
equipment identity UEID, where the channel distribution information
and the data are sent by the user equipment according to the
control channel and the data channel that are of the third quantity
of repetitions, then parses the user equipment identity UEID
embedded in the data that is on the control channel and the data
channel that are of the third quantity of repetitions, and finally
acquires, according to the user equipment identity UEID,
information about the control channel and the data channel that are
of the third quantity of repetitions, so that the base station
sends a control command on the control channel and the data channel
that are of the third quantity of repetitions.
[0215] 312. When the user equipment is woken up from a sleep state,
the user equipment performs an operation of downlink
synchronization, and then performs a channel re-selection
operation.
[0216] Specifically, when the user equipment is woken up from the
sleep state, the user equipment performs the operation of downlink
synchronization with the base station, so as to eliminate a time
difference between the user equipment and the base station caused
by sleeping of the user equipment, and acquires a time for
completing the operation of downlink synchronization; then, the
user equipment determines, according to the time for the operation
of downlink synchronization and a preset relationship between a
preset time for the operation of downlink synchronization and
channel selection, a control channel and a data channel that are of
a fourth quantity of repetitions.
[0217] Further, if a quantity of repetitions required for data
changes into a fourth quantity of repetitions after the user
equipment completes the operation of downlink synchronization, and
the fourth quantity of repetitions is different from the first
quantity of repetitions, the base station acquires a re-selection
status that is sent by the user equipment and is of the control
channel and the data channel that are of the corresponding fourth
quantity of repetitions, and then completes sending of signaling to
the user equipment on the control channel and the data channel that
are of the fourth quantity of repetitions, where the operation of
downlink synchronization is used as a synchronization operation of
eliminating the time difference between the user equipment and the
base station caused by sleeping of the user equipment.
[0218] 313. The base station acquires data and channel distribution
information that are sent by the user equipment according to a
control channel and a data channel that are of a fourth quantity of
repetitions.
[0219] Specifically, when the user equipment is woken up from the
sleep state, the user equipment performs the operation of downlink
synchronization, and then performs the channel re-selection
operation. The user equipment sends the data to the base station
according to the determined control channel and data channel that
are of the fourth quantities of repetitions, and the base station
accordingly acquires the re-selection status that is sent by the
user equipment and is of the control channel and the data channel
that are of the fourth quantities of repetitions, and then
completes sending of signaling to the user equipment on the control
channel and the data channel that are of the fourth quantity of
repetitions, where the operation of downlink synchronization is
used as a synchronization operation of eliminating the time
difference between the user equipment and the base station caused
by sleeping of the user equipment.
[0220] It should be noted that there is no time sequence between
steps 312 to 313 and steps 301 to 311, that is, steps 312 to 313
may be completed before or after steps 301 to 311, or may be
completed at any moment during execution of steps 301 to 311.
[0221] According to the broadcast control bandwidth allocation and
data transceiving method provided in this embodiment of the present
invention, location information and channel distribution
information that are of each user equipment are acquired, bandwidth
and quantities of data channels and control channels and quantities
of repetitions corresponding to each data channel and each control
channel are determined, and then bandwidth allocation information
is updated according to the bandwidth and the quantities of data
channels and control channels and the quantities of repetitions
corresponding to each data channel and each control channel, where
the bandwidth allocation information further includes frequency
channel number positions of uplink and downlink narrowband and a
position fixedly used as a time-frequency resource position of a
random access channel RACH; then, broadcast information is sent to
the user equipment, where the broadcast information in a broadcast
channel includes at least the bandwidth allocation information, so
that each user equipment determines, according to the bandwidth
allocation information, a control channel and a data channel that
are of a corresponding quantity of repetitions and are required for
sending data. In the solution, preprocessing is performed on a
time-frequency resource of a channel according to a use status fed
back by user equipment, and effective dynamic division is performed
on the time-frequency resource of the channel, so as to change a
conventional common mode of a channel into a multiplexing mode in
which time division or frequency division or time-frequency
division is performed on a channel according to a real-time use
status of the user equipment, which greatly improves utilization
efficiency of the original channel, thereby maximizing utilization
of the time-frequency resource in a process of performing data
interaction between a base station and the user equipment, and
further improving stability and efficiency in a data transmission
process.
Embodiment 3
[0222] An embodiment of the present invention provides a base
station. As shown in FIG. 11, the base station includes:
[0223] a first acquiring module 01, configured to acquire location
information and channel distribution information that are of
current user equipment, where the location information of the
current user equipment is used to indicate location coordinates of
the current user equipment, and the channel distribution
information is used to indicate information about a channel used by
the current user equipment and a quantity of repetitions of using
the channel; [0224] a preprocessing module 02, configured to
determine, according to the location information and the channel
distribution information that are of each user equipment, bandwidth
and quantities of data channels and control channels and quantities
of repetitions corresponding to the data channel and the control
channel;
[0225] an updating module 03, configured to update bandwidth
allocation information according to the bandwidth and the
quantities of data channels and control channels and the quantities
of repetitions corresponding to the data channel and the control
channel, where the bandwidth allocation information is used to
indicate time-frequency positions of and the quantities of
repetitions of the control channel and the data channel; and
[0226] a first sending module 04, configured to send broadcast
information to each user equipment by using a broadcast channel,
where the broadcast information includes at least the bandwidth
allocation information, so that each user equipment determines,
according to the bandwidth allocation information, a control
channel and a data channel that are of a corresponding quantity of
repetitions and are required for sending data, and then each user
equipment chooses to receive and send data on the corresponding
control channel and data channel
[0227] Further, as shown in FIG. 12, the preprocessing module 02
includes:
[0228] a first statistics collection module 05, configured to
collect statistics on the location information and the channel
distribution information that are of each user equipment to obtain
user equipment allocation ratios of each data channel and each
control channel that are of a corresponding quantity of
repetitions;
[0229] a first allocating module 06, configured to configure,
according to the user equipment allocation ratios of each data
channel and each control channel that are of the corresponding
quantity of repetitions, occupied time of each data channel and
each control channel that are of the corresponding quantity of
repetitions; and
[0230] a first calculating module 07, configured to determine,
according to the occupied time of each data channel and each
control channel that are of a different quantity of repetitions,
the bandwidth and the quantities of data channels and control
channels and the quantities of repetitions corresponding to the
data channel and the control channel.
[0231] Further, as shown in FIG. 13, the preprocessing module 02
further includes:
[0232] a second statistics collection module 08, configured to
collect statistics on the location information and the channel
distribution information that are of each user equipment to obtain
user equipment allocation ratios of each data channel and each
control channel that are of a corresponding quantity of
repetitions;
[0233] a second allocating module 09, configured to configure,
according to the user equipment allocation ratios of each data
channel and each control channel that are of the corresponding
quantity of repetitions, occupied frequencies and/or occupied time
frequencies of each data channel and each control channel that are
of the corresponding quantity of repetitions; and
[0234] a second calculating module 10, configured to determine,
according to the occupied frequencies and/or the occupied time
frequencies of each data channel and each control channel that are
of a different quantity of repetitions, the bandwidth and the
quantities of data channels and control channels and the quantities
of repetitions corresponding to the data channel and the control
channel.
[0235] Further, the bandwidth allocation information further
includes frequency channel number positions of uplink and downlink
narrowband and a position fixedly used as a time-frequency resource
position of a random access channel RACH; where:
[0236] the frequency channel number positions of the uplink and
downlink narrowband are used to indicate frequency band resources
occupied by the uplink and downlink narrowband; and
[0237] the time-frequency resource position of the random access
channel RACH is used to indicate a position of a resource that is
used for competitive access.
[0238] Further, the broadcast information further includes: access
control information, a cell ID, public land mobile network PLMN
information, a system frame number, a system message change
indication, random backoff time, and a random backoff
probability.
[0239] Further, as shown in FIG. 14, the base station further
includes:
[0240] a first receiving module 11, configured to receive the
channel distribution information and data embedded with a user
equipment identity UEID, where the channel distribution information
and the data are sent by the user equipment according to a control
channel and a data channel that are of a corresponding quantity of
repetitions; or
[0241] receive the channel distribution information and a part of
data embedded with a user equipment identity UEID and a buffer
status report BSR, where the channel distribution information and
the part of data are sent by the user equipment according to a
control channel and a data channel that are of a corresponding
quantity of repetitions.
[0242] Further, as shown in FIG. 15, the base station further
includes:
[0243] a first parsing module 12, configured to parse the channel
distribution information and the part of data embedded with the
user equipment identity UEID and the buffer status report BSR to
obtain a parsed second quantity of repetitions, where the channel
distribution information and the part of data are sent on the
control channel and the data channel that are of the corresponding
quantity of repetitions; and
[0244] a second sending module 13, configured to send scheduling
information that includes the second quantity of repetitions to the
user equipment, so that the user equipment adjusts an original
quantity of repetitions to the second quantity of repetitions
according to the scheduling information to perform data
sending.
[0245] Further, as shown in FIG. 16, the base station further
includes:
[0246] a second acquiring module 14, configured to: if the user
equipment fails to send the data according to the control channel
and the data channel that are of the corresponding quantity of
repetitions, and a quantity of data retransmissions performed by
the user equipment according to a random backoff probability in the
broadcast information is greater than a preset maximum threshold,
acquire data that is sent by the user equipment on a control
channel and a data channel that are of a corresponding third
quantity of repetitions; and
[0247] a second parsing module 15, configured to parse a user
equipment identity UEID embedded in the data that is on the control
channel and the data channel that are of the third quantity of
repetitions, so that the base station sends a control command on
the control channel and the data channel that are of the third
quantity of repetitions.
[0248] Further, as shown in FIG. 17, the base station further
includes:
[0249] a third acquiring module 16, configured to: if a quantity of
repetitions required for data changes into a fourth quantity of
repetitions after the user equipment completes an operation of
downlink synchronization, acquire a re-selection status that is
sent by the user equipment and is of a control channel and a data
channel that are of the corresponding fourth quantity of
repetitions, so as to complete sending of signaling to the user
equipment on the control channel and the data channel that are of
the fourth quantity of repetitions, where the operation of downlink
synchronization is used as a synchronization operation of
eliminating a time difference between the user equipment and the
base station caused by sleeping of the user equipment.
[0250] According to the base station provided in this embodiment of
the present invention, location information and channel
distribution information that are of each user equipment are
acquired, bandwidth and quantities of data channels and control
channels and quantities of repetitions corresponding to each data
channel and each control channel are determined, and then bandwidth
allocation information is updated according to the bandwidth and
the quantities of data channels and control channels and the
quantities of repetitions corresponding to each data channel and
each control channel, where the bandwidth allocation information
further includes frequency channel number positions of uplink and
downlink narrowband and a position fixedly used as a time-frequency
resource position of a random access channel RACH; then, broadcast
information is sent to the user equipment, where the broadcast
information in a broadcast channel includes at least the bandwidth
allocation information, so that each user equipment determines,
according to the bandwidth allocation information, a control
channel and a data channel that are of a corresponding quantity of
repetitions and are required for sending data. In the solution,
preprocessing is performed on a time-frequency resource of a
channel, and effective dynamic division is performed on the
time-frequency resource of the channel; then, a base station
writes, into bandwidth allocation information in broadcast
information, preset bandwidth and quantities of each data channel
and each control channel and preset quantities of repetitions
corresponding to each data channel and each control channel. After
receiving the broadcast information, user equipment accordingly
obtains a scheme for performing effective dynamic division on the
time-frequency resource of the channel, that is, the bandwidth and
the quantities of each data channel and each control channel and
the quantities of repetitions corresponding to each data channel
and each control channel; the user equipment parses parameters in
the broadcast information, so as to complete a corresponding
channel selection operation, which implements semi-static
adjustment performed by the base station on the user equipment, and
therefore, sending data by a channel optimizes a process of
performing data interaction between the base station and the user
equipment.
Embodiment 4
[0251] An embodiment of the present invention provides user
equipment. As shown in FIG. 18, the user equipment includes:
[0252] a second receiving module 21, configured to receive
broadcast information broadcast by a base station, where the
broadcast information includes at least bandwidth allocation
information, the bandwidth allocation information is determined by
the base station by acquiring location information and channel
distribution information that are of each user equipment, where the
location information of each user equipment is used to indicate
coordinates of each user equipment, and the channel distribution
information is used to indicate a channel used by each user
equipment and a quantity of repetitions of sending data on the
channel; and then, by determining, by the base station according to
the location information and the channel distribution information
that are of each user equipment, bandwidth and quantities of data
channels and control channels and quantities of repetitions
corresponding to the data channel and the control channel, and
further by updating the bandwidth allocation information according
to the bandwidth and the quantities of data channels and control
channels and the quantities of repetitions corresponding to the
data channel and the control channel, where the bandwidth
allocation information includes preset bandwidth and quantities of
each data channel and each control channel and preset quantities of
repetitions corresponding to each data channel and each control
channel, frequency channel number positions of uplink and downlink
narrowband, and a position fixedly used as a time-frequency
resource position of a random access channel RACH;
[0253] a processing module 22, configured to determine, according
to the broadcast information in a broadcast channel and the
recorded channel distribution information of each user equipment, a
control channel and a data channel that are of a corresponding
first quantity of repetitions; and
[0254] a third sending module 23, configured to send data and the
channel distribution information to the base station according to a
preset rule by using the control channel and the data channel that
are of the first quantity of repetitions.
[0255] Further, as shown in FIG. 19, the third sending module
further includes a first determining module 24, specifically
configured to:
[0256] if the data can be completely sent within one frame, embed a
user equipment identity UEID in the transmitted data; and
[0257] send, to the base station according to the control channel
and the data channel that are of the first quantity of repetitions,
the channel distribution information and the data embedded with the
user equipment identity UEID.
[0258] Further, the third sending module 23 is specifically
configured to:
[0259] if the data cannot be completely sent within one frame,
separately embed a user equipment identity UEID and a buffer status
report BSR in the transmitted data;
[0260] send, to the base station according to the control channel
and the data channel that are of the first quantity of repetitions,
the channel distribution information and a part of the transmitted
data embedded with the user equipment identity UEID and the buffer
status report BSR;
[0261] acquire scheduling information of the base station, where
the scheduling information includes an adjusted second quantity of
uplink repetitions that is obtained after the base station parses
the part of data embedded with the user equipment identity UEID and
the buffer status report BSR; and
[0262] send a remaining part of data to the base station according
to the second quantity of repetitions in the scheduling
information.
[0263] Further, as shown in FIG. 20, the user equipment further
includes:
[0264] a recording module 25, configured to record the first
quantity of repetitions of the corresponding control channel and
data channel that send the data, so that when re-sending the data,
the user equipment determines the control channel and the data
channel that are of the corresponding first quantity of
repetitions.
[0265] Further, as shown in FIG. 21, the processing module 22
further includes:
[0266] a second determining module 26, configured to determine
whether the control channel and the data channel that are of the
data and of the first quantity of repetitions are recorded; and
[0267] an executing module 27, configured to: if the control
channel and the data channel that are of the data and of the first
quantity of repetitions are not recorded, perform information
combining on the continuously received broadcast information, and
parse the combined broadcast information according to preset
parsing code to determine the control channel and the data channel
that are of the corresponding first quantity of repetitions; or if
the control channel and the data channel that are of the data and
of the first quantity of repetitions are recorded, send data to the
base station by re-using the control channel and the data channel
that are of the first quantity of repetitions.
[0268] Further, as shown in FIG. 22, the user equipment further
includes:
[0269] a backoff module 28, configured to: if sending the data to
the base station according to the preset rule by using the control
channel and the data channel that are of the first quantity of
repetitions fails, perform a preset time of backoff according to
random backoff time in the broadcast information;
[0270] a monitoring module 29, configured to monitor the broadcast
information in the broadcast channel; and
[0271] a fourth sending module 30, configured to re-send the data
to the base station according to a random backoff probability in
the broadcast information.
[0272] Further, as shown in FIG. 23, the user equipment further
includes:
[0273] a first selecting module 31, configured to: if a quantity of
data retransmissions performed according to the random backoff
probability in the broadcast information is greater than a preset
maximum threshold, re-select, according to the current first
quantity of repetitions of the control channel and the data
channel, a control channel and a data channel that are of a third
quantity of repetitions that is greater than the first quantity of
repetitions; and
[0274] a fifth sending module 32, configured to send the data and
the channel distribution information to the base station according
to the control channel and the data channel that are of the third
quantity of repetitions, so that the base station sends signaling
to the user equipment on the re-selected control channel and data
channel that are of the third quantity of repetitions, where the
data is embedded with a user equipment identity UEID.
[0275] Further, as shown in FIG. 24, the user equipment further
includes:
[0276] a synchronizing module 33, configured to perform an
operation of downlink synchronization with the base station, so as
to eliminate a time difference between the user equipment and the
base station caused by sleeping of the user equipment;
[0277] a fourth acquiring module 34, configured to acquire a time
for completing the operation of downlink synchronization; and
[0278] a second selecting module 35, configured to determine,
according to the time for the operation of downlink synchronization
and a preset relationship between a preset time for the operation
of downlink synchronization and channel selection, a control
channel and a data channel that are of a fourth quantity of
repetitions.
[0279] Further, as shown in FIG. 25, if the fourth quantity of
repetitions is different from the first quantity of repetitions,
the user equipment further includes:
[0280] a sixth sending module 36, configured to send the data and
the channel distribution information to the base station according
to the control channel and the data channel that are of the fourth
quantity of repetitions, so that the base station sends signaling
to the user equipment on the re-selected control channel and data
channel that are of the fourth quantity of repetitions.
[0281] According to the user equipment provided in this embodiment
of the present invention, location information and channel
distribution information that are of each user equipment are
acquired, bandwidth and quantities of data channels and control
channels and quantities of repetitions corresponding to each data
channel and each control channel are determined, and then bandwidth
allocation information is updated according to the bandwidth and
the quantities of data channels and control channels and the
quantities of repetitions corresponding to each data channel and
each control channel, where the bandwidth allocation information
further includes frequency channel number positions of uplink and
downlink narrowband and a position fixedly used as a time-frequency
resource position of a random access channel RACH; then, broadcast
information is sent to the user equipment, where the broadcast
information in a broadcast channel includes at least the bandwidth
allocation information, so that each user equipment determines,
according to the bandwidth allocation information, a control
channel and a data channel that are of a corresponding quantity of
repetitions and are required for sending data. In the solution,
preprocessing is performed on a time-frequency resource of a
channel according to a use status fed back by user equipment, and
effective dynamic division is performed on the time-frequency
resource of the channel, so as to change a conventional common mode
of a channel into a multiplexing mode in which time division or
frequency division or time-frequency division is performed on a
channel according to a real-time use status of the user equipment,
which greatly improves utilization efficiency of the original
channel, thereby maximizing utilization of the time-frequency
resource in a process of performing data interaction between a base
station and the user equipment, and further improving stability and
efficiency in a data transmission process.
Embodiment 5
[0282] An embodiment of the present invention provides a base
station. As shown in FIG. 26, the base station includes:
[0283] a receiver 41, configured to acquire location information
and channel distribution information that are of each user
equipment, where the location information of each user equipment is
used to indicate coordinates of each user equipment, and the
channel distribution information is used to indicate a channel used
by each user equipment and a quantity of repetitions of sending
data on the channel;
[0284] a processor 42, configured to: determine, according to the
location information and the channel distribution information that
are of each user equipment, bandwidth and quantities of data
channels and control channels and quantities of repetitions
corresponding to the data channel and the control channel; and
update bandwidth allocation information according to the bandwidth
and the quantities of data channels and control channels and the
quantities of repetitions corresponding to the data channel and the
control channel, where the bandwidth allocation information is used
to indicate time-frequency positions of and the quantities of
repetitions of the control channel and the data channel; and
[0285] a sender 43, configured to send broadcast information to
each user equipment by using a broadcast channel, where the
broadcast information includes at least the bandwidth allocation
information, so that each user equipment determines, according to
the bandwidth allocation information, a control channel and a data
channel that are of a corresponding quantity of repetitions and are
required for sending data, and then each user equipment chooses to
receive and send data on the corresponding control channel and data
channel
[0286] Further, the processor 42 is further configured to: collect
statistics on the location information and the channel distribution
information that are of each user equipment to obtain user
equipment allocation ratios of each data channel and each control
channel that are of a corresponding quantity of repetitions;
configure, according to the user equipment allocation ratios of
each data channel and each control channel that are of the
corresponding quantity of repetitions, occupied time of each data
channel and each control channel that are of the corresponding
quantity of repetitions; and determine, according to the occupied
time of each data channel and each control channel that are of a
different quantity of repetitions, the bandwidth and the quantities
of data channels and control channels and the quantities of
repetitions corresponding to the data channel and the control
channel
[0287] Further, the processor 42 is further configured to: collect
statistics on the location information and the channel distribution
information that are of each user equipment to obtain user
equipment allocation ratios of each data channel and each control
channel that are of a corresponding quantity of repetitions;
configure, according to the user equipment allocation ratios of
each data channel and each control channel that are of the
corresponding quantity of repetitions, occupied frequencies and/or
occupied time frequencies of each data channel and each control
channel that are of the corresponding quantity of repetitions; and
determine, according to the occupied frequencies and/or the
occupied time frequencies of each data channel and each control
channel that are of a different quantity of repetitions, the
bandwidth and the quantities of data channels and control channels
and the quantities of repetitions corresponding to the data channel
and the control channel
[0288] Further, the bandwidth allocation information further
includes frequency channel number positions of uplink and downlink
narrowband and a position fixedly used as a time-frequency resource
position of a random access channel RACH; where:
[0289] the frequency channel number positions of the uplink and
downlink narrowband are used to indicate frequency band resources
occupied by the uplink and downlink narrowband; and
[0290] the time-frequency resource position of the random access
channel RACH is used to indicate a position of a resource that is
used for competitive access.
[0291] Further, the broadcast information further includes: access
control information, a cell ID, public land mobile network PLMN
information, a system frame number, a system message change
indication, random backoff time, and a random backoff probability,
where:
[0292] the access control information is used to indicate a type of
user equipment that is allowed for access or allowed to send
data;
[0293] the cell ID is physical identification information of a
cell, and is used to distinguish different cells;
[0294] the PLMN information is used to distinguish different
operator networks, so as to perform access control;
[0295] the system frame number is used to indicate a current
running time point of a base station;
[0296] the system message change indication is used to indicate
whether a system message of user equipment changes;
[0297] the random backoff time is used to indicate sleep duration
of user equipment after the user equipment fails to send data;
and
[0298] the random backoff probability is used to indicate whether
to perform a backoff operation, and a probability of performing the
backoff operation.
[0299] Further, the receiver 41 is further configured to:
[0300] receive the channel distribution information and data
embedded with a user equipment identity UEID, where the channel
distribution information and the data are sent by the user
equipment according to a control channel and a data channel that
are of a corresponding quantity of repetitions; or
[0301] receive the channel distribution information and a part of
data embedded with a user equipment identity UEID and a buffer
status report BSR, where the channel distribution information and
the part of data are sent by the user equipment according to a
control channel and a data channel that are of a corresponding
quantity of repetitions.
[0302] Further, the receiver 41 is further configured to: if the
user equipment fails to send the data according to the control
channel and the data channel that are of the corresponding quantity
of repetitions, and a quantity of data retransmissions performed by
the user equipment according to a random backoff probability in the
broadcast information is greater than a preset maximum threshold,
acquire data that is sent by the user equipment on a control
channel and a data channel that are of a corresponding third
quantity of repetitions; and
[0303] the sender 43 is further configured to parse a user
equipment identity UEID embedded in the data that is on the control
channel and the data channel that are of the third quantity of
repetitions, so that the base station sends a control command on
the control channel and the data channel that are of the third
quantity of repetitions.
[0304] Further, the receiver 41 is further configured to: if a
quantity of repetitions required for data changes into a fourth
quantity of repetitions after the user equipment completes an
operation of downlink synchronization, acquire a re-selection
status that is sent by the user equipment and is of a control
channel and a data channel that are of the corresponding fourth
quantity of repetitions, so as to complete sending of signaling to
the user equipment on the control channel and the data channel that
are of the fourth quantity of repetitions, where the operation of
downlink synchronization is used as a synchronization operation of
eliminating a time difference between the user equipment and the
base station caused by sleeping of the user equipment.
[0305] Further, the receiver 41 is further configured to: if a
quantity of repetitions required for data changes into a fourth
quantity of repetitions after the user equipment completes an
operation of downlink synchronization, acquire a re-selection
status that is sent by the user equipment and is of a control
channel and a data channel that are of the corresponding fourth
quantity of repetitions, so as to complete sending of signaling to
the user equipment on the control channel and the data channel that
are of the fourth quantity of repetitions, where the operation of
downlink synchronization is used as a synchronization operation of
eliminating a time difference between the user equipment and the
base station caused by sleeping of the user equipment.
[0306] According to the base station provided in this embodiment of
the present invention, location information and channel
distribution information that are of each user equipment are
acquired, bandwidth and quantities of data channels and control
channels and quantities of repetitions corresponding to each data
channel and each control channel are determined, and then bandwidth
allocation information is updated according to the bandwidth and
the quantities of data channels and control channels and the
quantities of repetitions corresponding to each data channel and
each control channel, where the bandwidth allocation information
further includes frequency channel number positions of uplink and
downlink narrowband and a position fixedly used as a time-frequency
resource position of a random access channel RACH; then, broadcast
information is sent to the user equipment, where the broadcast
information in a broadcast channel includes at least the bandwidth
allocation information, so that each user equipment determines,
according to the bandwidth allocation information, a control
channel and a data channel that are of a corresponding quantity of
repetitions and are required for sending data. In the solution,
preprocessing is performed on a time-frequency resource of a
channel, and effective dynamic division is performed on the
time-frequency resource of the channel; then, a base station
writes, into bandwidth allocation information in broadcast
information, preset bandwidth and quantities of each data channel
and each control channel and preset quantities of repetitions
corresponding to each data channel and each control channel. After
receiving the broadcast information, user equipment accordingly
obtains a scheme for performing effective dynamic division on the
time-frequency resource of the channel, that is, the bandwidth and
the quantities of each data channel and each control channel and
the quantities of repetitions corresponding to each data channel
and each control channel; the user equipment parses parameters in
the broadcast information, so as to complete a corresponding
channel selection operation, which implements semi-static
adjustment performed by the base station on the user equipment, and
therefore, sending data by a channel optimizes a process of
performing data interaction between the base station and the user
equipment.
Embodiment 6
[0307] An embodiment of the present invention provides user
equipment. As shown in FIG. 27, the user equipment includes:
[0308] a receiver 51, configured to receive broadcast information
broadcast by a base station, where the broadcast information
includes at least bandwidth allocation information, the bandwidth
allocation information is determined by the base station by
acquiring location information and channel distribution information
that are of each user equipment, where the location information of
each user equipment is used to indicate coordinates of each user
equipment, and the channel distribution information is used to
indicate a channel used by each user equipment and a quantity of
repetitions of sending data on the channel; and then, by
determining, by the base station according to the location
information and the channel distribution information that are of
each user equipment, bandwidth and quantities of data channels and
control channels and quantities of repetitions corresponding to the
data channel and the control channel, and further by updating the
bandwidth allocation information according to the bandwidth and the
quantities of data channels and control channels and the quantities
of repetitions corresponding to the data channel and the control
channel, where the bandwidth allocation information includes preset
bandwidth and quantities of each data channel and each control
channel and preset quantities of repetitions corresponding to each
data channel and each control channel, frequency channel number
positions of uplink and downlink narrowband, and a position fixedly
used as a time-frequency resource position of a random access
channel RACH;
[0309] a processor 52, configured to determine, according to the
broadcast information in a broadcast channel and a recorded running
status of the user equipment, a control channel and a data channel
that are of a corresponding first quantity of repetitions; and
[0310] a sender 53, configured to send data and the channel
distribution information to the base station according to a preset
rule by using the control channel and the data channel that are of
the first quantity of repetitions.
[0311] Further, the broadcast information further includes: access
control information, a cell ID, public land mobile network PLMN
information, a system frame number, a system message change
indication, random backoff time, and a random backoff probability,
where:
[0312] the access control information is used to indicate a type of
user equipment that is allowed for access or allowed to send
data;
[0313] the cell ID is physical identification information of a
cell, and is used to distinguish different cells;
[0314] the PLMN information is used to distinguish different
operator networks, so as to perform access control;
[0315] the system frame number is used to indicate a current
running time point of a base station;
[0316] the system message change indication is used to indicate
whether a system message of user equipment changes;
[0317] the random backoff time is used to indicate sleep duration
of user equipment after the user equipment fails to send data;
and
[0318] the random backoff probability is used to indicate whether
to perform a backoff operation, and a probability of performing the
backoff operation.
[0319] Further,
[0320] the processor 52 is further configured to: if it is
determined that the data can be completely sent within one frame,
embed a user equipment identity UEID in the transmitted data;
and
[0321] the sender 53 is further configured to send, to the base
station according to the control channel and the data channel that
are of the first quantity of repetitions, the channel distribution
information and the data embedded with the user equipment identity
UEID.
[0322] Further, the processor 52 is further configured to: if the
data cannot be completely sent within one frame, separately embed a
user equipment identity UEID and a buffer status report BSR in the
transmitted data;
[0323] the receiver 51 is further configured to acquire scheduling
information of the base station, where the scheduling information
includes an adjusted second quantity of uplink repetitions that is
obtained after the base station parses a part of data embedded with
the user equipment identity UEID and the buffer status report BSR;
and
[0324] the sender 53 is further configured to: send, to the base
station according to the control channel and the data channel that
are of the first quantity of repetitions, the channel distribution
information and the part of the transmitted data embedded with the
user equipment identity UEID and the buffer status report BSR; and
send a remaining part of data to the base station according to the
second quantity of repetitions in the scheduling information.
[0325] Further, the processor 52 is further configured to record
the first quantity of repetitions of the corresponding control
channel and data channel that send the data, so that when
re-sending the data, the user equipment determines the control
channel and the data channel that are of the corresponding first
quantity of repetitions.
[0326] Further, as shown in FIG. 28, the user equipment further
includes a memory 54, which is configured to record the first
quantity of repetitions of the corresponding control channel and
data channel that send the data, so that when re-sending the data,
the user equipment determines the control channel and the data
channel that are of the corresponding first quantity of
repetitions.
[0327] Further, the processor 52 is further configured to:
determine whether the control channel and the data channel that are
of the data and of the first quantity of repetitions are recorded;
and if the control channel and the data channel that are of the
data and of the first quantity of repetitions are not recorded,
perform information combining on the continuously received
broadcast information, and parse the combined broadcast information
according to preset parsing code to determine the control channel
and the data channel that are of the corresponding first quantity
of repetitions; or if the control channel and the data channel that
are of the data and of the first quantity of repetitions are
recorded, send data to the base station by re-using the control
channel and the data channel that are of the first quantity of
repetitions.
[0328] Further, the processor 52 is further configured to: if
sending the data to the base station according to the preset rule
by using the control channel and the data channel that are of the
first quantity of repetitions fails, perform a preset time of
backoff according to random backoff time in the broadcast
information; and monitor the broadcast information in the broadcast
channel; and
[0329] the sender 53 is further configured to re-send the data to
the base station according to a random backoff probability in the
broadcast information.
[0330] Further, the processor 52 is further configured to: if a
quantity of data retransmissions performed according to the random
backoff probability in the broadcast information is greater than a
preset maximum threshold, re-select, according to the current first
quantity of repetitions of the control channel and the data
channel, a control channel and a data channel that are of a third
quantity of repetitions that is greater than the first quantity of
repetitions; and
[0331] the sender 53 is further configured to send the data and the
channel distribution information to the base station according to
the control channel and the data channel that are of the third
quantity of repetitions, so that the base station sends signaling
to the user equipment on the re-selected control channel and data
channel that are of the third quantity of repetitions, where the
data is embedded with a user equipment identity UEID.
[0332] Further, the processor 52 is further configured to: perform
an operation of downlink synchronization with the base station, so
as to eliminate a time difference between the user equipment and
the base station caused by sleeping of the user equipment; and
determine, according to a time for the operation of downlink
synchronization and a preset relationship between a preset time for
the operation of downlink synchronization and channel selection, a
control channel and a data channel that are of a fourth quantity of
repetitions; and
[0333] the receiver 51 is further configured to acquire the time
for completing the operation of downlink synchronization.
[0334] Further, the sender 53 is further configured to send the
data and the channel distribution information to the base station
according to the control channel and the data channel that are of
the fourth quantity of repetitions, so that the base station sends
signaling to the user equipment on the re-selected control channel
and data channel that are of the fourth quantity of
repetitions.
[0335] According to the user equipment provided in this embodiment
of the present invention, location information and channel
distribution information that are of each user equipment are
acquired, bandwidth and quantities of data channels and control
channels and quantities of repetitions corresponding to each data
channel and each control channel are determined, and then bandwidth
allocation information is updated according to the bandwidth and
the quantities of data channels and control channels and the
quantities of repetitions corresponding to each data channel and
each control channel, where the bandwidth allocation information
further includes frequency channel number positions of uplink and
downlink narrowband and a position fixedly used as a time-frequency
resource position of a random access channel RACH; then, broadcast
information is sent to the user equipment, where the broadcast
information in a broadcast channel includes at least the bandwidth
allocation information, so that each user equipment determines,
according to the bandwidth allocation information, a control
channel and a data channel that are of a corresponding quantity of
repetitions and are required for sending data. In the solution,
preprocessing is performed on a time-frequency resource of a
channel according to a use status fed back by user equipment, and
effective dynamic division is performed on the time-frequency
resource of the channel, so as to change a conventional common mode
of a channel into a multiplexing mode in which time division or
frequency division or time-frequency division is performed on a
channel according to a real-time use status of the user equipment,
which greatly improves utilization efficiency of the original
channel, thereby maximizing utilization of the time-frequency
resource in a process of performing data interaction between a base
station and the user equipment, and further improving stability and
efficiency in a data transmission process.
[0336] Various aspects are described in this specification with
reference to a terminal and/or a base station and/or a base station
controller.
[0337] The user equipment may be a wireless terminal or a wired
terminal. The wireless terminal may refer to a device that provides
a user with voice and/or data connectivity, a handheld device with
a radio connection function, or another processing device connected
to a radio modem. The wireless terminal may communicate with one or
more core networks by using a radio access network (such as RAN,
Radio Access Network). The wireless terminal may be a mobile
terminal, such as a mobile phone (also referred to as a "cellular"
phone) and a computer with a mobile terminal, for example, may be a
portable, pocket-sized, handheld, computer built-in, or in-vehicle
mobile apparatus, which exchanges language and/or data with the
radio access network. For example, it may be a device such as a
personal communication service (PCS, Personal Communication
Service) phone, a cordless telephone set, a Session Initiation
Protocol (SIP) phone, a wireless local loop (WLL, Wireless Local
Loop) station, or a personal digital assistant (PDA, Personal
Digital Assistant). The wireless terminal may also be referred to
as a system, a subscriber unit (Subscriber Unit), a subscriber
station (Subscriber Station), a mobile station (Mobile Station), a
mobile terminal (Mobile), a remote station (Remote Station), an
access point (Access Point), a remote terminal (Remote Terminal),
an access terminal (Access Terminal), a user terminal (User
Terminal), a user agent (User Agent), a user device (User Device),
or user equipment (User Equipment).
[0338] The base station (for example, an access point) may refer to
a device in communication with a wireless terminal via one or more
sectors at an air interface in an access network. The base station
may be used to mutually convert a received over-the-air frame and
an IP packet and serve as a router between the wireless terminal
and a rest portion of the access network, where the rest portion of
the access network may include an Internet Protocol (IP) network.
The base station may also coordinate attribute management of the
air interface. For example, the base station may be a base
transceiver station (BTS, Base Transceiver Station) in GSM or CDMA,
may be a NodeB (NodeB) in WCDMA, or may be an evolved NodeB (NodeB,
eNB, or e-NodeB, evolutional Node B) in LTE, which is not limited
in the present invention.
[0339] It may be clearly understood by a person skilled in the art
that, for the purpose of convenient and brief description, division
of the foregoing functional modules is taken as an example for
illustration. In actual application, the foregoing functions can be
allocated to different functional modules and implemented according
to a requirement, that is, an inner structure of an apparatus is
divided into different functional modules to implement all or some
of the functions described above. For a detailed working process of
the foregoing system, apparatus, and unit, reference may be made to
a corresponding process in the foregoing method embodiments, and
details are not described herein again.
[0340] In the several embodiments provided in the present
application, it should be understood that the disclosed system,
apparatus, and method may be implemented in other manners. For
example, the described apparatus embodiment is merely exemplary.
For example, the module or unit division is merely logical function
division and may be other division in actual implementation. For
example, a plurality of units or components may be combined or
integrated into another system, or some features may be ignored or
not performed. In addition, the displayed or discussed mutual
couplings or direct couplings or communication connections may be
implemented by using some interfaces. The indirect couplings or
communication connections between the apparatuses or units may be
implemented in electronic, mechanical, or other forms.
[0341] The units described as separate parts may or may not be
physically separate, and parts displayed as units may or may not be
physical units, may be located in one position, or may be
distributed on a plurality of network units. Some or all of the
units may be selected according to actual needs to achieve the
objectives of the solutions of the embodiments.
[0342] In addition, functional units in the embodiments of the
present invention may be integrated into one processing unit, or
each of the units may exist alone physically, or two or more units
are integrated into one unit. The integrated unit may be
implemented in a form of hardware, or may be implemented in a form
of a software functional unit.
[0343] When the integrated unit is implemented in the form of a
software functional unit and sold or used as an independent
product, the integrated unit may be stored in a computer-readable
storage medium. Based on such an understanding, the technical
solutions of the present invention essentially, or the part
contributing to the prior art, or all or some of the technical
solutions may be implemented in the form of a software product. The
computer software product is stored in a storage medium and
includes several instructions for instructing a computer device
(which may be a personal computer, a server, or a network device)
or a processor (processor) to perform all or some of the steps of
the methods described in the embodiments of the present invention.
The foregoing storage medium includes: any medium that can store
program code, such as a USB flash drive, a removable hard disk, a
read-only memory (ROM, Read-Only Memory), a random access memory
(RAM, Random Access Memory), a magnetic disk, or an optical
disc.
[0344] The foregoing descriptions are merely specific
implementation manners of the present invention, but are not
intended to limit the protection scope of the present invention.
Any variation or replacement readily figured out by a person
skilled in the art within the technical scope disclosed in the
present invention shall fall within the protection scope of the
present invention. Therefore, the protection scope of the present
invention shall be subject to the protection scope of the
claims.
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